Shirley Manson of Garbage joined Gwen Stefani and No Doubt on stage for a rousing performance of "Stand and Deliver" in Los Angeles Tuesday night. Shirley is getting back into music after a very difficult year in which her mother was diagnosed with dementia, she suffered the loss of several people who close to her and she underwent surgery herself. Her show Terminator: The Sarah Connor Chronicles was canceled (infuriatingly enough, we loved that show), but we hear rumors she may be back on TV soon. Take a look: