Justin Timberlake might really be the PERFECT guy to bring Sexy Back.  The former NSYNCer showed off his goods as bumped up against a back-up dancer while performing in Australia.

On Monday, bloggers and gossipers around the world couldn't keep their minds off Justin's sexy bulge.

Timberlake, who is currently "secretly" dating Jessica Biel, has been attached to suck Hollywood hitters and Cameron Diaz and Britney Spears. 

Now we know why this man is getting all the ladies, and why Lance Bass secretly wants Justin to join his team!