Cody Simpson Celebrates 18th Birthday with Justin Bieber, Miley Cyrus, Gigi Hadid & More!

Cody Simpson snaps a photo with his pal Justin Bieber in this photo from his 18th birthday party on Sunday (January 11) in Malibu, Calif.

The Aussie singer was surrounded by friends, including Jaden Smith, girlfriend Gigi Hadid, and Miley Cyrus, the latter of whom presented him with a pizza-designed cake!

PHOTOS: Check out the latest pics of Cody Simpson

“I had an awesome 18th party at a beach house in Malibu, with some of my mates from Australia and some new friends from the states,” Cody told JJJ. “Things got pretty wild.”

It was so crazy, in fact, Cody was thrown into a pool and totally ruined his phone!

Happy belated, Cody! Check out more photos below!