Ann Wilson loved watching her son play "Guitar Hero III: Legends of Rock." Heart's lead singer is honored to have her song "Barracuda" featured in the video game, adding that it's a good way of passing music on to younger generations. "I have a son who's 12, and when he was 10 it was hard for him," she said. "But he got into it. He got a chair, took his shirt off, got his guitar on and he got good. It was fun to see him play the songs on that game." Heart and former Van Halen lead singer Sammy Hagar are headlining the second annual Walk 'n' Rock For Kids at Raley Field May 31. The walk and concert event benefits the local Hope Productions Foundation, which aims "to strengthen nonprofit o