Justin Timberlake And Scarlett Johansson Heat Things Up

Everyone’s talking about the hottest hookup in South Beach. Looks like Jessica Biel is out of the picture and Scarlett Johanson is back on with Justin Timberlake.

Last night Scarlett went out to the CAA party at Miami hot spot Mokai where she was spotted partying with Justin Timberlake's best friend Trace Ayala and his crew.

Kid Rock and Matt Leinart both tried picking up on Scarlett but she didn't seem the least bit interested. Although Justin was not at the party, the two eventually met up later on in the night.

Our Hollyscoop snoopers spotted Justin leaving Scarlett's bungalow at the Shoreclub hotel around 7am.