But she has let it get to her mouth!
The singer, who sported dreadlocks and a gap-toothed grin throughout her run on the show, visited the dentist before embarking on this summer's tour and has Tweeted a photo of her new smile, along with the following:
whats NOT missing in this picture?????? Yeah. That’s right.
We've posted the before-and-after shots below. Looking good, Crystal! (thehollywoodgossip)