Getting your music video played on MTV was the goal of almost every musical act in the 1980s and 1990s. (Yes, kids: MTV actually used to play music videos instead of a 24/7 loop of Real World/Road Rules Challenge). And there was nothing to make your music video stand out like have a celebrity - or multiple celebrities - show up for a cameo.

Who could deny the celebrity firepower of Rodney Dangerfield, Milton Berle or Ally Sheedy? One of them appearing in your music video = instant hit! We break down the best - and strangest - celebrity music video cameos ever. Jeff's had enough of Michael and Richard's shenanigans, so he's brought in some help - his brother Sam!

It's double the Hopkins, double the judgments.

Michael's Picks:

• Eddie Murphy (and others) in "Remember the Time" by Michael Jackson

• Kim Basinger in "Mary Jane's Last Dance" by Tom Petty and the Heartbreakers

• Christopher Walken in "Weapon of Choice" by Fatboy Slim

• Every Supermodel Ever in Freedom! 90 by George Michael

Richard's Choices

• Paul McCartney in "They Don't Know" by Tracey Ullman

• Milton Berle in "Round and Round" by Ratt

• Keanu Reeves in "Rush, Rush" by Paula Abdul

• Ally Sheedy and Johnny 5 in "Who's Johnny" by El DeBarge