13. Megan Fox and Dominic Monaghan
Megan Fox and Dominic Monaghan played a couple going through tough times in Eminem and Rihanna's "Love the Way You Lie."
14. Mila Kunis
LONG before she got pregnant by Ashton Kutcher, Mila Kunis appeared in the Aerosmith video for "Jaded" in 2000.
15. Jason Bateman, Jason Sudeikis, Ed Helms and Will Forte
It's Jason Bateman, Jason Sudeikis, Ed Helms and Will Forte! They all stopped by the video by Mumford & Sons' for "Hopeless Wanderer."
16. Scarlett Johansson
OOOOH YEAHH!! Scarlett Johansson kisses Justin Timberlake here for the video "What Goes Around…Comes Around."
17. Sophia Bush
Smile, Sophia Bush! You're in the video for "Carried Away" by Passion Pit.
Wait! There's more! Just click "Next" below: