Rihanna Rehab Music Video Ft. Justin Timberlake Preview – Here is a sneak peak of Rihanna’s music video for her song “Rehab” featuring Justin Timberlake The music video for “Rehab” was directed by Anthony Mandler and the premiere date is yet to be announced.But rumors are saying that the clip will have a new version of the track with vocals by Timberlake.You can watch Rihanna’s “Rehab” featuring Justin Timberlake music video preview after the jump.