Article Photos: Santana to headline 2 years at Vegas' Mandalay Bay 5/7

FILE - In this Oct. 27, 2011 photo, musicians Keifer Thompson, left, and Shawna Thompson, of the group Thompson Square, pose for a portrait in Los Angeles. The husband-wife team are canceling their upcoming performances after Shawna Thompson's father died Thursday, Feb. 23, 2012 in Alabama. (AP Photo/Matt Sayles, file) ORG XMIT: NYET957