It was a a star-studded evening in West Hollywood, where Justin Bieber celebrated the recent launch of his new album, Swag.

Justin Bieber's album release attendees have all the "SWAG" in the world ... with some of the biggest celebs in Hollywood ...

Justin Bieber surprised fans with the unannounced release of his new album, 'SWAG,' and celebrated its launch at The Bird ...

Justin Bieber's album release attendees have all the "SWAG" in the world ... with some of the biggest celebs in Hollywood ...