A dapper Guy Sebastian lets loose enjoying cocktails as he leads celebrity arrivals at launch of Four Hundred Bar in Sydney

Feeling fruity! Shock pictures of Guy Sebastian celebrating his 42nd birthday by puffing on a melon ice-flavoured vape during a round of golf

Guy Sebastian's wife Jules reduced to tears after the singer's generous act for couple's proposal

Guy Sebastian helps a lucky fan propose to his girlfriend by serenading the lucky couple in heartwarming stunt