Justin brought his mom to the Golden Globes and then was seen flirting with Jessica Biel [0]at the In Style after party. Later that night he supposedly had a passionate fight with a very jealous Cameron. Clearly there are still issues there the two need to work out so it's a good thing this whole Scarlett thing is apparently not so serious. Here's more: [1]

Pals of Scarlett Johansson – who got together with Justin Timberlake shortly after his breakup from Cameron Diaz – are calling their relationship “casual,” saying that the actress sees this as her ‘single girl’ phrase.”

"They're just having fun," says a friend of the couple, who hooked up after the L.A. taping of his "What Goes Around" video, in which she appears.

Still, longtime Johansson pal Michelle Trachtenberg gives the hookup a thumbs-up. “I love Justin’s music and Scarlett’s really talented,” she tells Us. “So, hey – good times!”

We'll see how long Scarlett's single girl phase lasts. As for JT we like the idea of him and Scarlett together but she might just be a rebound girl especially since he and Cammie still have issues.