1. When Paris Hilton seduced a middle schooler in "Nothing in This World."
2. When Kelly Rowland sent a text using Microsoft Excel in "Dilemma."
3. When a Blink-182 member made out with these binoculars in "All the Small Things."
4. When Zack Galifianakis rapped and starred in the alternate video for Kanye West's "Can't Tell Me Nothing."
5. When the "Stacy's Mom" video featured the little kid masturbating.
7. When the guys from NSYNC were dancing puppets who landed on a train once they were cut in "Bye Bye Bye."
8. When Kathy Griffin played the nurse in "The Real Slim Shady."
9. When Mariah Carey dressed up as Eminem (allegedly) in "Obsessed."
10. When Justin Bieber created a scavenger hunt in "One Less Lonely Girl" and wrote this note.
11. When Kim Kardashian was the love interest in Fall Out Boy's "Thnks fr th Mmrs."
12. When Rihanna spooned with a mannequin in "Disturbia."
13. When the star of Britney Spears' "Piece of Me" was the girl in the silver dress.
14. When Xtina hosted a boxing/apocalypse orgy in "Dirrty."
15. When Avril Lavigne literally STOLE THIS COP'S nachos in "Complicated."
16. And finally, when R. Kelly was "Trapped in the Closet" for 33 videos.
