Wolfmother is an Australian hard rock band from Sydney. Formed in 2004, the group is centred around vocalist and guitarist Andrew Stockdale, who is the only constant member of the line-up. The band has been through many personnel changes since their formation. The original – and most commercially successful – line-up included bassist and keyboardist Chris Ross and drummer Myles Heskett. Ross and Heskett left Wolfmother after four years in 2008.