<Ul> <Li> Brendon Urie--lead vocals, guitar, piano, keyboards (2004--present); bass guitar (2005--2010, 2015--present); drums (2015--present) </Li> </Ul> <Li> Brendon Urie--lead vocals, guitar, piano, keyboards (2004--present); bass guitar (2005--2010, 2015--present); drums (2015--present) </Li> <Ul> <Li> Ryan Ross--lead guitar, vocals, piano, keyboards, synthesizers (2004--2009); lead vocals (2004) </Li> <Li> Spencer Smith--drums, percussion (2004--2015; hiatus 2013--2015) </Li> <Li> Brent Wilson--bass guitar (2004--2006) </Li> <Li> Jon Walker--bass guitar, backing vocals, piano, keyboards, guitar (2006--2009) </Li> <Li> Dallon Weekes--bass guitar, vocals, piano, keyboards, guitar (2010--2015; touring member 2009--2010, 2015--2017) </Li> </Ul> <Li> Ryan Ross--lead guitar, vocals, piano, keyboards, synthesizers (2004--2009); lead vocals (2004) </Li>

When did panic at the disco become famous