Christopher James Cester is an Australian musician, songwriter, producer and founding mainstay drummer and backing vocalist of rock band Jet. As a member of Jet, Cester has won awards as a songwriter from the Australasian Performing Right Association (APRA), including in 2005 as Songwriter of the Year, and 2011 for "Seventeen", which won "Most Played Australian Work" and "Rock Work of the Year".

Nicholas John Cester is an Australian musician, singer, songwriter and guitarist, known for being the frontman and lead singer in rock band Jet alongside his younger brother Chris. Cester is also a founder of the Australian supergroup The Wrights. Jet's track "Are You Gonna Be My Girl", has won APRA Awards for 'Most Performed Australian Work Overseas' in 2006 and 2007.