Details of the party have been trickling in and tons of fun pics from the shindig have landed online, showing Harry, his rumored girlfriend Nadine Leopold, and his famous friends.
So, who was on the guest list? Ex-girlfriend Kendall Jenner, Cara Delevingne, Kelly Osbourne, Rashida Jones, Adele, David Beckham, Cindy Crawford, Zach Braff, Adam Levine, Alexa Chung, and Courteney Cox. Even Jennifer Lawrence and Chris Martin were rumored to have joined in on the festivities, as well as Harry's One Direction bandmates, Liam Payne and Louis Tomlinson.
Harry's birthday cakes (four!) were a literal walk down memory lane, showing fetus pics from long before he was a superstar. What a cute idea.
A source told People.com, "When he blew out his birthday candles, he FaceTimed his mom. He was so sweet to all his guests."
Harry's birthday cakes. pic.twitter.com/UuYZ9fvcAQ- best harry pics (@thestylespics) February 2, 2015
Thank you for all the lovely messages for my birthday. All the love. H- Harry Styles. (@Harry_Styles) February 1, 2015
Harry with David Beckham and other guests at his 21st birthday party in LA. pic.twitter.com/AgVDfgIkK6- 1DPH ♔ (@Official1D_PHIL) February 2, 2015
Photobooth pics at Harry's 21st birthday party. pic.twitter.com/Gp0JG3uvR9- 1DPH ♔ (@Official1D_PHIL) February 2, 2015
Harry at his birthday party in LA last night #1 pic.twitter.com/aeCM9yf46z- One Direction Manila (@1DInfectionMNL) February 2, 2015
Kendall, Cameron Azoff, Glenne Christiaansen and Talita Von Furstenberg were also at Harry's birthday party pic.twitter.com/s79Dah1z0T- 1D SLOVAKIA UPDATES (@_1DSlovakia) February 2, 2015
Harry with Cara Delevigne, Kelly Osborne and Rashida Jones at his 21st birthday party -N pic.twitter.com/mPHfclYpSP- 1D Updates (@WW1DUpdates) February 2, 2015