The Odd Couples

The history of rock has brought many weird parings.  For instance, Jimi Hendrix and the Monkees.  This from the New York Times:

"In one of rock's all-time mismatches, Jimi Hendrix and the Experience signed on as an opening act for the Monkees in midtour. After dates in the South, they played several concerts in July 1967 in the stadium at the West Side Tennis Club in Forest Hills. What were they thinking? Answer: The Monkees wanted respect, and Hendrix wanted publicity. Despite the notoriety from his guitar-burning appearance at the Monterey Pop Festival the month before, Hendrix was better known in England than in the United States, and was far less popular than the Monkees, who had been created for a television sitcom and whose fans consisted mostly of prepubescent girls. According to an account of the incident in "Oops," a new chronicle of modern fiascoes by Martin J. Smith and Patrick J. Kiger, Hendrix's temper boiled over at Forest Hills. The problem wasn't the performers, who got along pretty well. It was the Monkees' fans, who had little interest in the scary psychedelic dude who preceded their idols. Hendrix's riffs were drowned out by screams of 'We want Davy!' (Davy Jones was a Monkee.) Finally, Hendrix gestured obscenely, with words to match, and stomped offstage. A publicist had a master stroke, putting out the fictional story that opposition from the Daughters of the American Revolution had forced Hendrix off the tour. It worked. His next tour, before appreciative audiences, was a success, and within a year, he was a superstar."

Hendrix Meets the Monkees - New York Times, http://www.nytimes.com/2006/07/09/nyregion/09fyi.html (last visited Dec. 20, 2011).

Who the **** thought that was a good idea?  Anyway, no matter what type of combination--producer/director; "superstar" band, same billing/tour, what are some of the greatest mismatches of all times?