Often touted as one of the greatest voices ever, there is zero question about
Christina Aguilera's talent. Her myriad of, um, questionable looks through the years, however? Well, that's another story entirely. What we will say is that the coach on
The Voice looks ah-mazing this season! What's her secret weapon? Makeup artist Scott Barnes! That's right, the man behind the contoured faces of celebs like
Jennifer Lopez and
Kim Kardashian has ...