The singer's big celebration went down on Saturday at The Nice Guy in West Hollywood. His girlfriend Gigi Hadid was there, along with his famous pals Miley Cyrus, Selena Gomez, and Patrick Schwarzenegger. Justin Bieber was seen in some of the b-day photos with Cody, but there's no word if he hung out with his ex Sel.
"Happiest of birthdays to bubba and such an incredible person," Selena shared on Instagram while posing with the birthday boy. "Love you inside out @codysimpson -here's to more."
What's even better than his guest list, is the sweet birthday cake his mom made him. It was very similar to Miley Cyrus'...it was a pizza cake!
Cody's real birthday fell on Sunday. We're sure he used that day to recover and celebrate on the low. Happy belated birthday, Codes!