Demi Lovato not engaged to Wilmer Valderrama yet, but 'wouldn't mind'

There may not be an engagement ring on Demi Lovato's finger now, but the "Confident" singer is all for putting one there in the future.

The "Sonny With a Chance" alum cleared up rumors that she was already affianced to long-time boyfriend Wilmer Valderrama during a Wednesday appearance on "The...