David Bowie won the Grammy award for best rock song for his song "Blackstar." It was Bowie's fourth Grammy win on Sunday. The late singer won three awards during a pre-telecast ceremony that bestowed him with Grammys for best alternative music album, rock performance and engineered album. Saxophonist Donny McCaslin proudly accepted the earlier awards during a pre-telecast ceremony. McCaslin said Bowie's wins mean a lot for his fans. Bowie died of cancer last year at age 69.