Jet's track "Are You Gonna Be My Girl", has won APRA Awards for 'Most Performed Australian Work Overseas' in 2006 and 2007.

He is the oldest of four brothers, born to a Scottish mother and an Australian father of Italian descent, John.

Cester attended St Bedes Boys College in Mentone, Victoria, and sees The Beatles as his greatest musical influence.

On 31 October 2007, Cester performed alongside Powderfinger and Missy Higgins in Concert for a Cure (for women with breast cancer).

In February 2009, Cester performed at the 50th anniversary celebration of the founding of Melbourne's Myer Music Bowl with a cover version of Paul McCartney's "Maybe I'm Amazed".

On 22 January 2010, he covered the AC/DC song "Back in Black" with British rock group Muse at the Big Day Out.

Cester tours with Jet for most of the year, but when not travelling he shares his time between homes in Melbourne and Como, Italy.