Christina Aguilera

These are possibly some of the worst fashion moments of all time — or at least the '90s.

From Lady Gaga to Roseanne Barr, revel in the best — and worst — renditions of 'The Star Spangled Banner' celebrities have to offer.

Find out how Rihanna, Ariana Grande and more stars celebrated the holidays this year.

Xtina is stripping down her look and her sound.

Now THIS is art pop.

The soulful song is a fitting plea for tolerance and equality.

34-year-old Alisan Porter signals Coach Christina's very first win on the show in 10 seasons.

Plus, she describes Lady Gaga as 'I don't know, like, eggs...'

From NSYNC's tragic early-oughties fashion to Lil Kim's famous nipple pastie, allow us to transport you back to a time in pop culture history when Pink's stage name actually made sense.

A roundup of piano-driven pop songs that hit all the right piano notes.

NBC's 'The Voice' will be welcoming a new face to the judges panel for season seven: Gwen Stefani! Stefani will be sitting and slamming buttons in Christina Aguilera's chair, who is currently pregnant with her second child and will be taking time off to care for the new…

It's another major life event for singer Christina Aguilera!