Christina Aguilera’s Lips Artificially Plumped?

Christina Aguilera is being the latest female celebrity to plump up her pucker. Dr. Anthony Griffin, a plastic surgeon in Beverly Hills, tells Star magazine, “Her top lip looks like a rainbow, instead of a Cupid’s bow.” He suggested that the singer’s Restylane or collagen injection looked “overdone and probably brand new, as they tend to diminish over time.”