Uh-oh — is the *NSYNC-BSB battle [1] officially back? When Kathy Griffin stopped by Dirty Pop, Lance Bass's SiriusXM show, she was wearing a Backstreet Boys t-shirt, and Lance did not approve. He posted a funny picture of the comedian's visit, and in the photo, Lance is seen pretending to hit the image of the Backstreet Boys on her shirt. The caption? "@kathygriffin gets a punch in the gut for the shirt she wore to my talk show today!" Maybe he's feeling extra loyal to his former boy band after the new *NSYNC album [2] was released this week?

Source: Instagram user lancebass [3]