Timberlake: 'New song not another Britney attack'

Justin Timberlake has lashed out at reports he is having yet another dig at his ex-girlfriend Britney Spears in new song, What Goes Around Comes Around.

The pop superstar, who had a major hit with Cry me a River - a song he confessed was written with his former girlfriend in mind - fires back at claims the new song is another attack.