Justin Timberlake and Cameron Diaz have officially called it quits and rumors are circulating that Timberlake is going to hook up with his new video costar Scarlett Johansson. Justin and Scarlett were seen having intimate conversations, just after he and Cameron decided to part ways. Whether or not Justin left Cameron for Scarlett is debatable, although most sources are suggesting that Timberlake and Diaz parted ways in order to spend more time on their careers.

Justin and Cameron had been dating for over 3 years at the time of the split. The two claim that they just grew apart and didn't see the relationship lasting anymore. As for Justin and Scarlett - fireworks still may be in their future. Justin has been spending a lot of time with Scarlett over the past few weeks. She costars in his new music video "What Goes Around" which some sources say is about his ex-girlfriend Britney Spears.

Should Justin and Scarlett decide to become an item, they could quite possibly be Hollywood's newest 'it' couple. The two highly profiled celebrities will definitely give tabloids something to talk about. Until then, speculation of Justin and Scarlett together remains just that - speculation.