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25. John Stamos in 'Try to Sleep'
By Low
Actor John Stamos plays a dashing leading man on an old Hollywood film set as he cruises in a convertible and lip syncs the lyrics to Low's melancholy tune. He'll always be Uncle Jesse to us!
24. Tyrese Gibson in 'Telephone'
By Lady Gaga Feat. Beyonce
Actor/model/singer Tyrese Gibson appears as Beyonce's womanizing, deadbeat boyfriend, whom B takes great pleasure in poisoning to death via tainted pancake syrup in this Lady Gaga visual cacophony.
23. Megan Fox and Dominic Monaghan in 'Love the Way You Lie'
By Eminem Feat. Rihanna
Sex symbol ... and actress, Megan Fox, is the victim of domestic violence at the hands of Brit actor Dominic Monaghan in this Eminem video, but throws some blows herself. Apparently the co-stars' characters can relate to Rihanna's love of S&M relationships.
22. Christina Hendricks in 'The Ghost Inside'
By Broken Bells
Actress Christina Hendricks is a fiery-haired space traveler in this sci-fi-themed Broken Bells video. The vid also features several scenes of Hendricks bathing poolside in 'Mad Men'-esque 1950s style.
21. Jon Hamm in 'Tell Me Something I Don't Know'
By Herman Dune
From one 'Mad Men' star to the next, actor Jon Hamm picks up a furry hitchhiker friend on his way to a Herman Dune concert in this goofy, feel-good video.
20. Kim Basinger in 'Mary Jane's Last Dance'
By Tom Petty and the Heartbreakers
This dark video features Tom Petty as a morgue assistant who kidnaps a dead woman, played by the lovely-even-while-diseased, Kim Basinger. Kim is wined and dined and subjected to "one last dance" with the creepy necrophiliac.
19. James Van Der Beek in 'Blow'
By Ke$ha
Party-girl hitmaker Ke$ha seduces/insults none other than James Van Der Beek, whom we're guessing she crushed on hard while watching 'Dawson's Creek' as a pre-teen. "James Van Der Douche" and "Keh Dollar Sign Ha" engage in a hilarious war of words before battling in a war of rainbow guns.
18. Bruce Willis in 'Stylo'
By Gorillaz Feat. Mos Def and Bobby Womack
Action star Bruce Willis is not far from his 'Die Hard' roots in this action-packed Gorillaz video. The song makes for the perfect soundtrack to Willis' aviator-wearing, gun-slinging car chase.
17. Keanu Reeves in 'Rush, Rush'
By Paula Abdul
Before 'The Matrix,' Keanu Reeves was Paula Abdul's "chosen one" in this 'Rebel Without a Cause'-inspired video. It may be a forbidden love, but who could resists those long locks flowing in the wind? Check out the lip-locking finale!
16. Dustin Diamond and Ali Landry in 'I Do (Cherish You)'
By 98 Degrees
Former Miss USA and model-turned-actress Ali Landry is the woman of all four 98 Degrees boys' dreams. The grooms-to-be are all shocked to find one another trying to marry the same babe, but the real twist is that Landry doesn't choose any of the boy banders, opting for a trip down the aisle with the awesomely awkward Dustin Diamond, aka Screech from 'Saved by the Bell,' instead.
15. Scarlett Johansson in 'When the Deal Goes Down'
By Bob Dylan
Scarlett Johansson may have cameoed in Justin Timberlake's 'What Goes Around .../... Comes Around' video, but we prefer her dreamy performance in the 1950s home movie-esque Bob Dylan video.
14. Liv Tyler and Alicia Silverstone in 'Crazy'
By Aerosmith
Just before her 'Clueless' heyday, Alicia Silverstone co-starred along with Aerosmith frontman Steven Tyler's actress daughter Liv Tyler in this questionable video. Sure, rock videos feature scantily clad cameos from under-aged hotties all the time, but Steven caused quite a stir when he cast his own, then-teenage daughter in the sexually suggestive role.
13. Michael Cera in 'No You Don't'
By Islands
Off-beat actor Michael Cera and his always endearing dorkiness were right at home in this fantastical Islands visual spectacular. Cera's schoolboy character takes a psychedelic trip after experimenting with pill popping.
12. Christopher Mintz-Plasse in 'Erase Me'
By Kid Cudi Feat. Kanye West
Christopher Mintz-Plasse is Kid Cudi's hard-partying, wig-wearing, baby-faced drummer in this music vid. All in all it's not a far cry from his immmature drinking days as McLovin in 'Superbad.'
11. Eddie Murphy, Iman and More in 'Remember the Time'
By Michael Jackson
Only Michaal Jackson could move so many celebs to want to work with him. This ancient Egypt-themed video boasts cameos from the likes of Eddie Murphy, Iman, the Pharcyde, Magic Johnson, Tom "Tiny" Lister, Jr. and Wylie Draper.
10. Donald Glover, Jon Oliver and More in 'Moves'
By the New Pornographers
This hilarious New Pornographers' video is crammed with more than just cocaine -- it features cameos from comedian/actors Donald Glover, Jon Oliver, Horatio Sanz, Jon Wurster, Kevin Corrigan, Michael Lisk, Julie Klausner, Wyatt Cynac and more. The movie trailer for 'Expectant Dads' at beginning is fake, by the way, adding Paul Rudd and Bill Hader to the list of cameo spots.
9. Joe Jonas, Jake Gyllenhaal and More in 'Giving Up the Gun'
By Vampire Weekend
Actor Jake Gyllenhaal and one third of the Jonas Brothers trio, Joe Jonas, battle it out on the tennis court against a hard-hitting female competitor (who kicks their short shorts-wearing behinds) in this Vampire Weekend video. Rapper RZA officiates the match, while Lil Jon plays the athlete's French-speaking coach.
8. Zach Galifinakis in 'Not About Love'
By Fiona Apple
It takes a very funny man to make you laugh at an angsty, sullen, spiteful Fiona Apple tune, and actor/comedian Zach Galifinakis is that man. Watch him mock Fiona as he plays her "stupid" yet loavble boyfriend in this hilariously charming video.
7. Christopher Walken in 'Weapon of Choice'
By Fatboy Slim
Actor Christopher Walken's crazy legs have the ultimate cameo in this Fatboy Slim video. Walken was trained as a dancer in musical theater prior to his film career, and it shows as he tap dances, leaps and twirls around in an otherwise empty hotel.
6. Kanye West, Pharrell Williams and More in 'Barbara Streisand'
By Duck Sauce
Duck Sauce's 'Barbra Streisand' video is one big music industry superstar cameo party. Kanye West, Pharrell, Ryan Leslie, Chromeo, Diplo, Questlove, Santigold and tons more make an appearance in this vid. The only one missing is Barbra!
5. Pamela Anderson, Nia Long and Tracee Ellis Ross in 'Touch the Sky'
By Kanye West Feat. Lupe Fiasco
Pamela Anderson plays Kanye West's concerned girlfriend who bounces around (as only she can) begging for Evel Kanyevel not to blast himself off in a rocket. Enter the Pamela haters played by actresses Tracee Ellis Ross and Nia Long, who also gets a shout-out in the song. Jealous stank eyes ensue.
4. Cindy Crawford, Naomi Campbell and More in 'Freedom! '90'
By George Michael
George Michael's video is '90s supermodel cameo heaven. Cindy Crawford, Naomi Campbell, Linda Evangelista, Christy Turlington and Tatjana Patitz all together in one six-minute vid? Yes, please! And let's not forget the boys: male models John Pearson, Mario Sorrenti and Peter Formby also make an appearance.
3. Rebeca Black, Debbie Gibson and More in 'Last Friday Night (T.G.I.F.)'
By Katy Perry
'Glee' stars Darren Criss and Kevin McHale totally love Katy Perry's character Kathy Beth Terry for the awesome party she threw the night before, aided by YouTube sensation Rebecca Black, and the rager's live entertainment courtesy of Hanson and saxophonist Kenny G. '80s popstar Debbie Gibson and actor Corey Feldman play Kathy's disappointed parents the morning after in this hilarious, cameo-packed video.
2. Ron Howard, Forest Whitaker and More in 'Blame It (On the Alcohol)'
By Jamie Foxx Feat. T-Pain
Jamie Foxx's video features one of the most star-studded cast of cameos ever. Ron Howard, Forest Whitaker, Jake Gyllenhaal and Samuel L. Jackson all star as O.G.s, while Quincy Jones, Cedric the Entertainer, Mos Def, Tatyana Ali and many more get loose in the video. How did Foxx convince the A-listers to appear in his vid? "Blame it on the alcohol!"
1. Seth Rogen, Will Farrell and More in 'Fight for Your Right (Revisited)'
By Beastie Boys
This Beastie Boys video is one of the most celeb-packed vids around -- never mind the extended version, which is actually a short film. The cast of cameos includes Seth Rogen, Will Ferrel, John C. Reilly, Jack Black, Elijah Wood, Susan Sarandon, Ted Danson, Will Arnett, Stanley Tucci, Orlando Bloom and many more. Phew! Can you spot them all?
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