Every actor wants to be a rock star (see this douchebag) and every rock star wants to be an actor (see this freak).  It is rare when its done sucessfully (too surprising examples are Cher, an acadamy award winner, and Marky Mark Walburg), but more often than not, the results are pure unintentional comedy.

Below are my top 10 rock star roles that for the most part, make absolutely no sense and/or drip with delicious irony.

10) Mick Fleetwood as underground rebel leader Mic in "The Running Man" (2:30 in).  This was one that came as a total surprise.  But now, after close inspection, it makes sense considering Fleetwood's character is named "Mic".  Kudos to the Fleetwood Mac elder statesmen in not delving too much into character acting.

9) Tom Petty as the Mayor of Bridge City in "The Postman".  I have no idea how Petty got this role, besides being written for a famous person.  It is kind of comforting knowing that if the United States is plunged into an apocolyptic state, Petty will be available as our mayor. 

PS: what is more of a culture crime: Petty acting, or Costner singing?

8) Vanilla Ice as himself in "Teenage Mutant Ninja Turtles".  I was trying to exclude any "performance" appearances, since the musician is not really acting.  But then I remembered that Vanilla Ice never really was a musician. 

7) Keith Richards as Capt. Jack Sparrow's dad in "Pirates of the Carribean 3: At World's End".   Since Johnny Depp revealed that Keith was insporation for Sparriow, this was the worst kept secret of the whole production.  I was dissapointed to see the scene where Richards dies and Depp snorts his ashes landed on the cutting room floor.  Mick (#5 below) should've warned his crusty mate that no matter how cool you are, it doesn't necessarily translate to screen.

6) Michael Jackson as the Scarecrow in "The Whiz".  Think about it: some one actually let this man star in a children's movie. 

5) Mick Jagger as Victor Vacandek in "Freejack".  This trailer does no justice to how shitty Jagger is, let alone the entire movie.  Although, I would have liked to see this movie succeed just a little bit so the "Jagger as a wooden heavy" era would still have a life. 

4) Bob Dylan as Jack Fate in "Masked & Anonymous".  While his musical performances in the movie are a joy, the stilted dialogue and abstract plot, where Dylan is the son of a paramilitary dictator, really advances the notion that Dylan is not all that mysterious . . . or smart.  My favorite is Jeff Bridges as the nosy reporter looking to tear down the cool Dylan facade, and Ed Harris in black face (I shit you not).

3) Anthony Keidis and Flea as extreme assholes in "The Chase".  I forgot that Rollins was in this and kind of balances out the irony of these two.  Both Flea and Keidis are actually centered guys, but in the '90's their ADD performances made you think this was how the two really acted.  (Bonus points to Flea for appearing in the Back To The Future sequels.)

2) Bono as Mr. Kite in "Across The Universe".  I have no snarky comment for this.  The performance speaks for itself. 

No, wait.  I have one: when did Bono start looking like Robin Williams?

1) Bowie as Andy Warhol in "Basquiat".  I actually think this is a brilliant performance for the lone fact that Bowie knew Warhol so well.  While this clip is limiting of the part (please let me know where a better one exists), Bowie plays the pop artists' passive aggressiveness so well.  Bowie even reveals a shred of Warhol's humility when he encounters Basquiat's art for the first time and realizes all he's been doing is making millions off fucking stenciling.