PHOENIX, March 22, 2012 /PRNewswire/ -- Country music star Martina McBride joins forces with Phoenix Sam's Club associates to raise awareness

BENTONVILLE, Ark., March 12, 2012 /PRNewswire/ -- Sam's Club, the nation's 8th largest retailer and warehouse club, has joined forces

Standout line-up features headlining pop, rock, and country performers including Bonnie Raitt, IL DIVO, Barry Manilow, Ben Harper, Norah Jones, Martina McBride and Crosby Stills & Nash; the Annual NSO @ Wolf Trap series featuring Marvin Hamlisch and Idina Menzel; and Don Giovanni and The Rake's Progress by the Wolf Trap Opera Company

is part of Royal Caribbean Cruises Ltd., a global cruise vacation company that also operates Celebrity Cruises, Azamara Club Cruises, Pullmantur, CDF Croisieres de France, as well as TUI Cruises through a 50 percent joint venture with TUI AG.

LAS VEGAS, Sept.