Sugarland's Jennifer Nettles and Kristian Bush are the latest additions to 'Grammy Nominations Concert Live! - Countdown to Music's Biggest Night,' which will broadcast live on Nov. 30 from Los Angeles' Nokia Theatre.

Rapper LL Cool J takes the mic as host of the concert, which precedes the 54th annual Grammy Awards, set to air Feb. 1, 2012. In addition to nomination announcements, Jason Aldean and Lady Gaga join Sugarland as the night's performers. Plus, details about a "truly iconic group" that will reunite for the first time on this year's Grammy stage will be revealed.

Sugarland are no strangers to the ceremony's stage after taking home trophies in 2009 for Best Country Performance by a Duo or Group with Vocals and Best Country Song, for 'Stay.'

Tune into CBS on Nov. 30 for a night of exciting live performances and the big reveal of the 2012 Grammy nominees.

Watch Our Exclusive Day in the Life of Sugarland Video