Miranda Lambert, Martina McBride and Trace Adkins have been added to the list of performers at the 2011 Houston Livestock Show and Rodeo taking place March 1-20 at Reliant Stadium. Adkins will appear on March 2 during Armed Forces Appreciation Day. McBride performs on March 9, and Lambert is set to headline on March 16. They join previously-announced dates for Sugarland (March 3), the Zac Brown Band (March 17) and Brad Paisley (March 19). A complete list of performers will be announced in early January.