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Just announced this morning, Justin Bieber, Lady Antebellum and Bruno Mars have been added to the list of performers slated to take the stage at the 53rd annual Grammy Awards Presentation on February 13th.  They join previously-announced acts like Katy Perry, Lady Gaga, Ce Lo Green, and Eminem.

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According to the Examiner:

Bieber will perform with his mentor, R&B star Usher, as well as Jaden Smith, 12-year-old son of Will Smith. Jaden teamed up with Bieber for the song "Never Say Never," a Top 40 hit last year. Bieber is up for two awards, including Best New Artist, where he is a co-favorite.

Bruno Mars will perform with fellow R&B singers B.o.B. and Janelle Monae. Mars and B.o.B. are up for Record of the Year for their team-up "Nothin' on You." Monae, one of 2010's breakout stars, was sadly overlooked for Album of the Year but did score two nominations.

The 53rd annual Grammy Awards Presentation is scheduled for February 13th, at 8:00 pm on CBS.  (WNEM-TV5)