Justin Bieber was locked in a serious make-out session with the chick who stars in his "Baby" music video ... but the shocking part -- it all went down in the back of a Honda!!! And TMZ has the photos.
The chick playing tonsil hockey with The Biebs is 16-year-old Jasmine Villegas -- who also happens to be the opening act on Bieber's concert tour.
The photos were taken on Thursday, September 9 in Venice, CA by some Canadian tourist who just happened to notice his country's most famous pop star in the midst of a make-out session with the luckiest teenage girl on the planet.
The two had been rumored to be dating ... but they insisted they were just "really cool friends."
Sorry to disappoint you, Chelsea Handler Rihanna Kathy Griffin Kim Kardashian America.