Red Cross × Metallica (from April 2025)
Metallica
−0.13
youth skew · fans over-index most at 45–54
25,000+ donations; 16% of participants were first-time donors, nearly half of them aged 16–24.
American Red Cross press release, 2026The methodEvery number from Qloo
Famous isn’t the same as young.
Blood banks already team up with fandoms. FanDrive asks Qloo which fandoms actually skew young, are loved locally and live near a hall that can host. Here is how past partners look through that lens.
Past partners, through Qloo
Red Cross × NFL (7 years)
National Football League
+0.04
youth skew · fans over-index most at 25–29
More than 150,000 first-time blood donors over seven years.
American Red Cross press release, 2026Red Cross × Peanuts Snoopy shirt (April 2023)
Peanuts
Qloo has no age data for this fan base.
Traffic to the appointment page up 50% and organic search up 600% after the shirt went viral on TikTok.
NBC News, April 2023HBO × Red Cross “Bleed for the Throne” (2019)
Game of Thrones
−0.02
youth skew · fans over-index most at 30–34
The largest blood-donation promotion by an entertainment company in Red Cross history: drives in 43 states and at 9 colleges.
American Red Cross, 2019Consistent with the results, not a prediction: Metallica’s fans skew older (most over-represented at 45–54), and only 16% of its donors were first-timers. The NFL reached 150,000+ first-timers through sheer reach, not young fans (+0.04).
For contrast, fandoms FanDrive picked in live Houston runs (13–14 Oct 2026): Roblox +0.93, Kai Cenat +0.88, Fortnite +0.72.
Qloo data generated 2026-10-14. Youth skew is Qloo’s 24-and-under age affinity, from −1 (older) to +1 (younger).
Does Qloo’s age data match the real world?
FanDrive stands on one signal: how young a fan base is. So we checked it against an independent source, Nielsen’s ages of live TV viewers for eight leagues, which Qloo never sees.
−0.71
rank correlation between Nielsen’s viewer age and Qloo’s young-vs-old lean (−1 would be a perfect match). The three oldest audiences, golf, NASCAR and baseball, are the only three Qloo scores as older-leaning.
| League | TV viewer age | Qloo young lean |
|---|---|---|
| PGA Tour (golf) | 64 | −0.44 |
| NASCAR | 58 | −0.61 |
| MLB | 57 | −0.44 |
| WWE (pro wrestling) | 54 | +0.74 |
| NFL | 50 | +0.67 |
| Premier League | 43 | +0.75 |
| NBA | 42 | +0.74 |
| MLS | 40 | +0.73 |
Young lean = Qloo’s average affinity for ages under 35 minus 45 and over. Honest limits: the benchmark is TV viewers in 2016, not all fans today (WWE’s young fans watch online, so it’s the one big miss), and Qloo’s narrower 24-and-under value, which FanDrive scores on, tracks less tightly for whole leagues (−0.20). Sources: ESPN · Awful Announcing · 24/7 Wall St.. Re-run with pnpm validate-age.
20 cities: plain AI vs FanDrive
In each city, the same model was asked for youth blood-drive partners without Qloo, and every pick was checked against Qloo’s age data. FanDrive scored those picks plus its own candidates.
31%
of plain-AI picks have fans who skew older than average. 60% weren’t young-skewing or had no Qloo audience data.
+0.75
average youth skew of FanDrive’s top 3, vs +0.25 for plain-AI picks with data.
20/20
cities where plain AI never suggested at least one of FanDrive’s top 3.
20
different local picks across 20 cities, from Qloo’s local taste (e.g. Nico Hoerner in Chicago, STS9 in Denver).
| City | Plain AI suggested | FanDrive top 3 | Local pick |
|---|---|---|---|
| New York, NY data: strong | Grand Theft Auto VI · no dataKai Cenat +0.88Succession +0.14Ice Spice +0.85New York Knicks −0.01 | Stranger Things +0.71Amed Rosario +0.93Fortnite +0.72 | Amed Rosario +0.93 |
| Los Angeles, CA data: strong | 100 Thieves · no dataEuphoria +0.62Tyler, The Creator +0.38Los Angeles FC +0.00Emma Chamberlain +0.88 | Ozomatli +0.81H3 Podcast +0.88Andrew Heaney +0.94 | Ozomatli +0.81 |
| Chicago, IL data: strong | Chance the Rapper +0.30Chicago Bulls +0.02The Bear −0.23Lyrical Lemonade +0.61 | Nico Hoerner +0.85Twin Peaks +0.75Valorant +0.57 | Nico Hoerner +0.85 |
| Houston, TX data: medium | Travis Scott +0.46Houston Astros −0.01Stranger Things +0.71Apex Legends +0.34 | Jeremy Peña +0.98H-e-b +0.69Don Toliver +0.69 | Jeremy Peña +0.98 |
| Phoenix, AZ data: medium | Valorant +0.57Phoenix Suns +0.57SZA +0.32Euphoria +0.62 | Jake Lamb +0.96UPSAHL +0.82Fortnite +0.72 | Jake Lamb +0.96 |
| Philadelphia, PA data: medium | The Philadelphia Eagles −0.04Abbott Elementary +0.07Lil Uzi Vert +0.48Call of Duty +0.39Quinta Brunson +0.13 | LIL UZI VERT +0.48Nothing +0.70Philadelphia 76ers +0.13 | Nothing +0.70 |
| San Antonio, TX data: medium | San Antonio Spurs −0.07Apex Legends +0.34Gorillaz −0.06Stranger Things +0.71JRE MMA Show · no data | H-e-b +0.69Chimezie Metu +0.91Fortnite +0.72 | Chimezie Metu +0.91 |
| Dallas, TX data: medium | Dallas Mavericks −0.03Erykah Badu −0.04Stranger Things +0.71Fortnite +0.72Dude Perfect · no data | Adolis García +0.97Flatland Cavalry +0.75The Polyphonic Spree +0.80 | Adolis García +0.97 |
| Atlanta, GA data: strong | Lil Baby +0.49Atlanta Falcons +0.64Atlanta Dream −0.15Kai Cenat +0.88Stranger Things +0.71 | Atlanta Hawks +0.72Vaughn Hebron +0.96Lil Gotit +0.78 | Vaughn Hebron +0.96 |
| Seattle, WA data: medium | Seattle Kraken +0.55Macklemore −0.01The Last of Us −0.05Stranger Things +0.71Ludwig −0.04 | Paolo Banchero +0.99TeZATalks +0.96Ryan Caraveo +0.83 | Paolo Banchero +0.99 |
| Miami, FL data: strong | Inter Miami CF · no dataDJ Khaled +0.01Stranger Things +0.71Fortnite +0.72Rick Ross −0.14 | Fortnite +0.72Kate McGill +0.70Stranger Things +0.71 | Kate McGill +0.70 |
| Denver, CO data: medium | Denver Nuggets −0.08Stranger Things +0.71Fortnite +0.72Illenium −0.02Red Rocks Amphitheatre · no data | STS9 +0.88The Polish Ambassador +0.93Michal Menert +0.86 | STS9 +0.88 |
| Boston, MA data: medium | Boston Celtics −0.04Stranger Things +0.71Fortnite +0.72Billie Eilish +0.46 | Matt Turner +0.98Chappell Roan +0.68Aron Baynes +0.87 | Matt Turner +0.98 |
| Detroit, MI data: thin | Eminem −0.06Detroit Lions +0.00Fortnite +0.72Big Sean +0.05Stranger Things +0.71 | Emoni Bates +0.98Griz +0.57Cade Cunningham +0.87 | Emoni Bates +0.98 |
| Nashville, TN data: thin | CMA Fest −0.37Nashville SC −0.03The Try Guys · no dataGrand Ole Opry · no dataTaylor Swift −0.05 | Lennon Stella +0.50Amie Miriello +0.84Mason Ramsey +0.69 | Lennon Stella +0.50 |
| Mumbai data: medium | Minecraft +0.42Karan Aujla −0.20Kota Factory −0.23Mumbai Indians −0.07BeerBiceps · no data | Indian Ocean +0.77Lost Stories +0.48The Local Train +0.47 | Indian Ocean +0.77 |
| New Delhi data: thin | PUBG Mobile India +0.01Prateek Kuhad −0.21Kota Factory −0.23Delhi Capitals · no dataBeerBiceps (Ranveer Allahbadia) · no data | Valorant +0.57The Local Train +0.47Cigarettes After Sex +0.58 | The Local Train +0.47 |
| Bengaluru data: medium | Royal Challengers Bengaluru · no dataThe Local Train +0.47PUBG Mobile India +0.01Dice Media · no dataNikhil Kamath −0.29 | Valorant +0.57Rini +0.65Shanti People +0.62 | Rini +0.65 |
| Hyderabad data: thin | PUBG Mobile India +0.01Allu Arjun −0.37Sunrisers Hyderabad · no dataMTV Hustle · no dataNikhil Vijay · no data | Zaeden +0.79Shanti People +0.62Valorant +0.57 | Shanti People +0.62 |
| Chennai data: thin | Anirudh Ravichander −0.23Chennai Super Kings −0.04Biswa Kalyan Rath −0.36Valorant +0.57The Ranveer Show · no data | Ayyasamy Dharun +0.99Mckenna Grace +0.95md +0.62 | Ayyasamy Dharun +0.99 |
Green: youth skew ≥ +0.30 (ages 16–24). Pink: not young-skewing. FanDrive is scored with the same Qloo data it optimises, so the plain-AI numbers are the informative ones; this is not a turnout measure. Local picks are what young people in the city over-index on compared with 10 reference cities (Qloo’s view, not a hometown check). One plain-AI answer per city, recorded 2026-10-23 with gemini-3.1-flash-lite. Raw answers and script: docs/eval, scripts/eval.ts.
How a fandom is scored
Youth skew
How far the fan base leans 24-and-under.
/v2/insights · urn:demographicsLocal love
How much young people in this city like it.
/v2/insights · signal.location + signal.demographics.ageFan density
Where fans beat the city's baseline of mass brands.
/v2/insights · urn:heatmap vs baseline
Young-Donor Pull = 0.35 × youth skew + 0.45 × local love + 0.20 × fan density. Any fandom whose fans skew older ranks below every young one, and the AI planner can’t override that.
Where to host
Schools, colleges, community centres, libraries, gyms, halls, stadiums and places of worship near each fan zone. Bars and clubs get flyers, never the drive. No shooting ranges, cigar or vape shops, tattoo parlours, children’s schools or private homes.
Guardrails
No invented numbers (digits or words). No implied celebrity endorsements. “Fans also love” shows culture tags only, never religion or identity. Every Qloo request is listed as a receipt you can re-run.
Qloo, call by call
/searchResolve and confirm every name (mismatches are skipped with a reason)./v2/insights · urn:demographicsAge skew of each fan base./v2/insights · urn:entity:<type> + location + ageLocal love among young people in the city./v2/insights · urn:entity:artist|person + location + age (no entity filter)Local taste: what young people in the city over-index on, minus names that also top other reference cities./v2/insights · urn:heatmapFan zones: cells where the fandom beats the baseline./v2/insights · urn:entity:place (+ filter.tags)Venues near each fan zone, including campuses, halls and centres by Qloo place tag./v2/tagsResolve those place tags (university, community centre, event venue…)./v2/insights · urn:tagWhat the top fandoms' fans also love (culture tags only)./v2/trendingMomentum of TV, film, music and podcast picks.
Use it from your own agent
FanDrive is an MCP server with three read-only tools: plan_blood_drive, score_fandoms and city_strength. Same Qloo data, same guardrails.
claude mcp add --transport http fandrive https://fandrive-nu.vercel.app/api/mcpData limits
- Qloo’s youngest age bucket is “24 and under”, which includes people too young to donate. Eligibility rules always apply.
- Local love saturates near 1 for popular fandoms, so city-specific signal comes from fan density.
- Qloo’s trending series end in September 2025, so momentum is labelled with that window.
- Data is thinner outside the US; FanDrive shows a data badge for every city.