Sometimes photographers have no idea what is going on behind the scenes (pun intended) on the red carpet.
The three glam ladies posed for a group shot, so Mann decided to have a little bit of fun and grabbed Diaz's leather-clad butt. Unfortunately we can't see Diaz's immediate reaction but judging by their playful relationship, we are willing to bet the blond beauty didn't mind that her co-star briefly touched her bottom.
As for their formal looks, Diaz opted for a skintight long-sleeve number, Mann donned a sleeveless bright patterned dress and Upton wore a cap-sleeve black frock.
"She just referred to me as 'lady,'" Mann said about Minaj.
The 21-year-old model proposed a possible theory about the whole situation and quipped, "You know why she probably didn't remember your name? It's because she was really overwhelmed."
And even though Minaj has one of the most famous derrieres around, Upton said that nobody would pinch the former American Idol judge's butt.
"I'm surprised you didn't give her a little butt grab because you [Leslie] were pinching Cameron and my butt the whole time," the Sports Illustrated cover girl said.
And now we have proof of one pinch.