Ariana Grande, David Beckham, Kevin Durant and Aaron Rodgers have joined the All in Challenge to raise money for COVID-19 relief ... and their fans are responding in BIG numbers.
The pop star and trio of superstar athletes all got onboard in the last 24 hours with the fundraiser started by Philadelphia 76ers partner Michael Rubin. Ariana announced her fan experience Thursday ... offering dinner with her in L.A. and a hang out with her in the studio.