Premise: Twenty One Pilots . The band was formed in 2009 by lead vocalist Tyler Joseph along with former members Nick Thomas and Chris Salih , who eventually left in 2011 , and currently consists of Joseph and drummer Josh Dun . Their label debut , Vessel , was released in 2013 . The duo has won a Grammy Award for Best Pop Duo/Group Performance .
Hypothesis: Twenty One Pilots is a musical group.
Label: ENTAILMENT