We can now remove the question mark in this headline.
An insider tells E! News that Justin Timberlake and Jessica Biel are "definitely back on," following a summer spent mostly apart.
Biel and Timberlake were spotted at a wedding in Colorado over the weekend, which a source says was the culmination of months spent by Justin trying to win the actress back, adding simply: "He missed her...He went after her."
Since his March split from Biel, JT has been linked to hotties such as Olivia Wilde and Mila Kunis. One report even claimed he cheated on Jessica with Olivia Munn.
But whatever Timberlake said to get Biel back has finally worked. We wish we knew the guy's secret, so... eh, who are we kidding? Have you looked at and/or listened to Justin Timberlake?!?