Question: Which American cello rock band was hired by a three time Super Bowl winner to perform at his private party?
Sentence (from "The 440 Alliance"): The group has performed at a number of private parties for celebrities including Troy Aikman (Former NFL Quarterback for the Dallas Cowboys), Jerry Jones (Dallas Cowboys owner), John Kirtland (Former drummer for Deep Blue Something and owner of Kirtland Records), Janine Turner (from Northern Exposure), members of the Dallas Symphony Orchestra, as well as the Dallas, TX movie premier for the film 'The Soloist' (starring Jamie Foxx and Robert Downey Jr.).
Relevant evidence: Yes