Booboo Stewart shows off his custom birthday cake during his surprise birthday party on Wednesday night (January 19).

Organized by sister Fivel, the now 17-year-old actor celebrated with his closest friends and family including Suite Life on Deck star Matthew Timmons.

Booboo and his guests feasted on a Cold Stone Creamery’s Mint Chip ice cream cake. Yummy!

He tweeted, “awesome surprise party, close friends and family thanks fivel for putting it together.”

Check out the video below and bigger pic inside…