Which 2 bands or artists have been responsible for the worst collaborations?

Obviously the same person who thought this was a good idea also ... http://www.youtube.com/watch?v=Hn8xqHaoZgk

Mind you *anything* with Phil Collins is a bad idea. He shouldn't be allowed to collaborate with a microphone.

I like Queen and David Bowie(although red shoes and after he went way down hill) and the Rolling Stones but...

Under Pressure was a duet too far and Dancing in the Street by Bowie and Jagger was dire.

Anything featuring Ke$ha or Fred Durst basically

Also I love Jimmy Page but he should be shot for working with Puff Daddy

Marilyn Manson and Lady Gaga was pretty crappy.

And Chris Cornell made a song with f*cking TIMBALAND

EDIT: http://www.youtube.com/watch?v=59G67qq19e0

That guy should be SHOT

Sum 41 and Kerry King. Rock (What We're All About)

Not only did it suck, but it makes Kerry a total hypocrite for his hatred of rap metal.

as much as i love QotSA, the collabo between John Paul Johns( Led Zeppelin), Josh Homme (QOTSA), Dave Grohl(Foo Fighters) called Them Crooked Vultures doesnt sound too original or interesting to me. passing material.

Ozzy and Jessica Simpson- SOME RANDOM CHRISTMAS TUNE i DON'T REMEBER WHICH INE BUT IT WAS AWFUL.

nickelblack and carlos santana

puke