Benji Madden and Cameron Diaz started dating in May and recently tied the knot. But they aren't the only couple that makes us think, "they're together?" Click through for music's most surprising lovers.
Duritz also dated Aniston's Friends co-star, Courteney Cox.
When Details asked Groban about the nature of his relationship with Perry -- "did your tongue ever touch her tongue?" -- he refused to comment, saying only, "We might have skated on the line of dating."
Chris Martin and Jennifer Lawrence dated briefly after Martin consciously uncoupled from his marriage with Gwyneth Paltrow -- and might be back together again.