season 21 live shows continued on Monday with some show-stopping performances, including from Team Kelly's Girl Named Tom!The sibling trio from Ohio took the stage in all white for their Top 13 performance, showcasing their harmonies on a gorgeous rendition of Kansas' «Dust in the Wind.» It's Dedication Week, and Girl Named Tom sent their performance out to their grandmother, Jean, who is suffering from developing dementia, but was quite the singer in her day, even competing with her twin sister