03/02/2011 12:46 pm ET Updated May 25, 2011

Christina Aguilera Joins 'The Voice': Singer On NBC's 'American Idol' Rival

For Christina Aguilera, today's been a much better day than yesterday.

Aguilera was officially announced as the third judge on NBC's "The Voice," their new singing competition reality show meant to rival Fox's "American Idol". She joins Cee Lo Green and Adam Levine of Maroon 5, potentially giving the new upstart a more popular judging panel. In fact, they won't only judge, but they'll coach the contestants, too.

The show is to be produced by Mark Burnett and John de Mol, who created "The Voice of Holland," the Dutch television obsession that the show will be based on. Carson Daly is set to host.

In a statement, Aguilera said:

"I am so excited to be part of such a wonderful project that celebrates music and the talent behind it. To be given the opportunity to help shape new artists' careers and mentor them to see their dreams come to fruition is a task I welcome with open arms.mI am so happy to be working with fellow Grammy Award winners Adam and Cee Lo as I feel there is so much we can all bring to 'The Voice'."

This is a bit of good news for Aguilera, who has had a rough time of late. Early Tuesday, she was arrested for public intoxication -- her boyfriend, Matthew Rutler, got a DUI -- and she forgot the words to the National Anthem during the Super Bowl. She did, however, perform well at The Grammys.