Underwood takes the softball challenge for a good cause in Nashville, Tenn. Plus: Pete Wentz, Prince Harry, the Jonas Brothers and more

RUN, BATTER, RUN!

Carrie Underwood covers her bases during Wednesday's 18th Annual City of Hope Celebrity Softball Challenge held at Greer Stadium in Nashville, Tenn. Playing for the Grand Ole Opry Live team, Underwood joined fellow country stars, including Vince Gill and Sara Evans, to raise money for cancer research and treatment.