Sinclair co-wrote and produced Panic ! at the Disco 's '' Pray For The Wicked '' and '' Death of a Bachelor '' albums ( which debuted at number one on the US Billboard 200 ) and produced Weezer 's 2016 '' Weezer ( White Album ) '' . Both were nominated for Best Rock Album at the 59th Annual Grammy Awards . He co-wrote and produced " Uma Thurman " by Fall Out Boy , which debuted at number one on the U.S. iTunes Chart , reached number 22 on the Billboard Hot 100 , and was certified 2X Platinum by the RIAA in December 2015 . Sinclair received a Grammy nomination for Album of the Year for his work as engineer and bassist on Taylor Swift 's " Everything Has Changed " alongside producer Butch Walker . He co-wrote and produced the debut single , " She Looks So Perfect " by 5 Seconds of Summer that peaked at number one in over five countries and won '' Song of the Year '' at the 2014 ARIA Awards . Sinclair is the former bassist of the indie/pop rock band The Films and the lead singer and producer of the indie pop duo Alohaha . In November 2018 Sinclair won the Spotify Secret Genius Award for best rock producer
59th Annual Grammy Awards
59th Annual Grammy Awards
Jake Sinclair (musician)