Monday night’s episode of The Voice will have a very special twist to it – an Usher twist.

The season four mentor will be performing his brand new single “Twisted” and to get fans stoked for the event, he shared special behind-the-scenes photos on his Instagram and Facebook using the hashtag #VoiceTwisted.

See some of the pictures after the jump!

And the singing competition shake-ups continue! Shakira has confirmed that she will not be back for the next season ofThe Voice.

The Colombian crooner cited motherhood and a burning need to get back to the studio as her reasons for not returning to the show. The woman she replaced this season, Christina Aguilera, will return to her big red chair instead.

Find out what Shakira had to say about her exit after the jump!

Wow... someone called on her "Genie in a Bottle" for a makeover, and it totally did the trick! Although she isn't part of the show this season, Christina Aguilera supported her friends at The Voice at a screening for Season 4's first episode on Wednesday night, debuting a totally fresh and sexy new look.

Christina is known for (and proud of) her curves, as well as globbing on pounds of makeup, but she's noticeably slimmed down in her black and white Parker dress while showing off a much more natural face.