Northern Beaches rock band Black Iguana are the 2017 Northern Composure champions.
Astral Plane was runner-up and Pandamonium was third.
And popular band Dead to Rights won the Audience Choice Award.
Northern Beaches Council hosted the sold-out event at YOYOs in front of 250 excited fans.
For winning, Black Iguana get to record a single with renowned producer Paul Najar from JAMINAJAR.
Audience Choice winners Dead to Rights won $500 and a guaranteed paid gig at The Music Lounge.
Northern Composure is in its 17th year.