There are 2 bands with the same Slackjaw name on LastFm! For the Slackjaw blues-rock band go to Slackjaw Blues Band's page -> http://www.last.fm/music/Slackjaw+Blues+Band Slackjaw is an unadulterated entertainer. At the age of 17 he took Perth's premier battle competition, Open Mic Combat. His hunger for the microphone was hard to miss, appearing at the revered Hyde Park Mondays with his endless freestyles and memorable live performances.