What do you get man who has everything for his birthday?
If you're Justin Bieber, you get him a huge shirtless photo of yourself cradling your crotch.
The Blast has learned JB attended the 38th birthday party for his longtime manager, Scooter Braun, which went down Tuesday night at the posh San Vicente Bungalows in West Hollywood.
Along with Bieber, the party was attended by Scooter's other famous friends, like Usher, Katy Perry and Ashton Kutcher. Scooter's wife, Yael, also attended.
The big surprise of the evening, however, was when Bieber presented his gift to Scooter ... a giant framed shirtless pic of himself. In the photo, Bieber is showing off his famed Calvin Klein undies ... and has his hand provocatively stuffed down his pants.
The caption on the photo reads, "Happy Birthday Scooter ... You're welcome I'm awesome."