Lady Antebellum have just been announced as performers at the 53rd Annual Grammy Awards on Feb. 13, 2011. With the band added to the set, now all five Album of the Year nominees will perform: Lady A, Eminem, Arcade Fire, Lady Gaga and Katy Perry.

Lady Antebellum’s other Grammy nods include Record of the Year, Song of the Year, Best Country Song, Best Country Album and Best Country Performance by a Duo or Group With Vocals -- all for their smash hit, 'Need You Now.'

As previously reported, the other country star performing on the Grammys will be Miranda Lambert. Lambert's 'The House That Built Me' has multiple nominations, including the all-genre Song of the Year, Best Country Song and Best Female Country Vocal Performance. Her additional nods include Best Country Album for ‘Revolution’ and Best Country Collaboration With Vocals for joining Dierks Bentley and Jamey Johnson on ‘Bad Angel.’

More artists will be announced in the days to come, but so far Lady A and Lambert are the only country acts taking the stage on Grammy night.

Lady Antebellum's 'Need You Now' and Lambert's 'The House That Built Me' will be included on the 2011 Grammy nominees album, due on Jan. 25. The 19-track album also features John Mayer's 'Half of My Heart' with Taylor Swift. A portion of the sales will benefit the MusiCares Foundation and the Grammy Foundation.