Christina Aguilera

The 2000s had some pretty questionable celebrity fashion moments.

From Justin Timberlake to Britney Spears, find out where your favorite '90s and 2000s pop stars are today.

Kelly revealed the news to Christina on air!

Xtina's debut smash hit turned 20 today (June 22).

'She don’t wanna get dirrty.'

Rumor has it Christina Aguilera is headed to Las Vegas!

Celebrate the 20th birthday of these nostalgic albums from 1999.

Christina Aguilera has Lady Gaga's back.

The pop star answers fans and critics questioning her 2013 R. Kelly collab in the wake of the new Surviving R. Kelly docu-series.

Xtina joins already-announced 'New Year's Rockin' Eve' performers like Camila Cabello, Halsey, and Shawn Mendes.

Remember these looks?

Some of the biggest stars are urging fans to head to the polls this Election Day.