Billie Eilish, Paris Jackson, & More Stars Attend Kaia Gerber's 21st Birthday Party!

The stars are stepping out for Kaia Gerber‘s birthday party! Billie Eilish and brother Finneas stopped by the nightclub Offsunset for the model’s 21st birthday party on Saturday night (September 3) in Hollywood, Calif. PHOTOS: Check out the latest pics of Billie Eilish Other stars in attendance included Kaia‘s older brother Presley Gerber, Camila Morrone, [...]