Showing off their love -- on and off screen! Some Hollywood A-list couples don't mind taking their work home. Here's to Beyonce and Jay Z, John Mayer and Katy, and other celebrity couples who've appeared in each other's music videos.
"Jenny from the Block"
At the height of the Bennifer era, Ben Affleck appeared in Jennifer Lopez's video "Jenny from the Block," where the two displayed their affection -- and where the Argo actor rubbed her famous backside on a boat. But the high-profile relationship eventually fell apart when the couple called off their engagement in 2004.