Demi Lovato Vs. Gene Simmons -- Whose Tongue Wins?

Check out this Instagram selfie that Demi Lovato of her and Kiss' Gene Simmons backstage at the "American Idol" finale. It's a total battle of the tongues.

Gene Simmons' Daughter Makes 'X Factor' Judges 'Feel Her Love'

Demi Lovato falls for a 16-year-old contestant during Wednesday night's episode.

For The Record: Quick News On Hilary Duff, 'American Idol' And Gene Simmons, Outkast, QOTSA, Barbie & More

Velvet Revolver Blast Usher Off #1 Perch

Contraband sells more than 256,000 copies its first week out.

Kiss Good-Bye? Not With Broadway Musical, Gene Simmons' Tongue On Way

Kasino, kruises, kondoms, kartoons also heaped on bassist's plate.