Lambert at the Live Lounge
He played an intimate show to 300 fans who glammed up for the night.
As well as answering fan questions in a Q and A, he also accepted a packet of Tim Tams.
The event will be broadcast on Take 40 to 1.2 million listeners on many radio stations across Australia. It will also be on Channel 11's 'The Loop' on Saturday September 1.
See Adam perform his song 'Trespassing' below…