"This is the most epic example of how the show must go on," Rimes said in a video posted to her Instagram. "I was on stage, and in the middle of 'One Way Ticket,' I feel something pop in my mouth.

"I ran to the side of the stage and put it back in, like popped it back in, and then just went on singing," Rimes said with a laugh. "And then I just had to get real with everybody and tell them ...

LeAnn Rimes lost her teeth mid-song and spent rest of concert trying to push them back in: 'I panicked' "I don't usually have firsts in my career. That was a first and hopefully a last," Rimes said.