there was a group made just for sugar a girl who was put down par the Glee club and put up par shelby the instructor of troubletunes par letting her be i it eventually mercedes got itred of never getting the solos and quit the Glee club to rejoindre shelbys new group then santana eventually became upset with all the solos gojng to rachel as well so she then decided to leave the Glee club if her best friend brittany would so she asked roy the guy who brittany thought could make wishes come true and brittany was forced into joining along with santana. they began making up names and combined two names into troubletunes and that was how the group was made