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It's no surprise when actors get together with actors, or athletes hang out with other athletes, etc. When these worlds collide, however, and a C-Lister or two slips in, suddenly things get interesting. See when celebs are weirdly paired together like Woody Allen and Michael Jackson seen together at Studio 54 in New York City in 1977. (Ron Galella/WireImage/LIFE.com) Visit LIFE: Your World in Pictures
It's no surprise when actors get together with actors, or athletes hang out with other athletes, etc. When these worlds collide, however, and a C-Lister or two slips in, suddenly things get interesting. See when celebs are weirdly paired together like Woody Allen and Michael Jackson seen together at Studio 54 in New York City in 1977. (Ron Galella/WireImage/LIFE.com) Visit LIFE: Your World in Pictures
'70s heartthrob Leif Garrett, actress Justine Bateman, and nine-time Grammy winner Bonnie Raitt come together in Los Angeles in 1980. (L. Cohen/WireImage/LIFE.com) Visit LIFE: Your World in Pictures
TV's "Steve Urkel" hangs out with the chain-smoking wild man. (Time and Life Pictures/Time Life Pictures/Getty Images/LIFE.com) Visit LIFE: Your World in Pictures
Tennis legend John McEnroe, singer Meat Loaf, Australian Open winner Vitas Gerulaitis, and guitarist Carlos Santana mingle in 1982. (Ron Galella/WireImage/LIFE.com) Visit LIFE: Your World in Pictures
Former President of the Soviet Union Mikhail Gorbachev presents a trophy to "Charlie's Angels" star Lucy Liu at the Women's World Awards in New York City in 2006. (Peter Kramer/Getty Images/LIFE.com) Visit LIFE: Your World in Pictures
Marilyn Manson meets Mickey Mouse at Disneyland for the "Pirates of the Caribbean: Dead Man's Chest" premiere in 2006. (Lester Cohen/WireImage/LIFE.com) Visit LIFE: Your World in Pictures
Crooner Pat Boone and Foo Fighters leader/former Nirvana drummer Dave Grohl arrive at the MusiCares Person of the Year Tribute at the Los Angeles Convention Center in 2009. (Rick Diamond/WireImage/LIFE.com) Visit LIFE: Your World in Pictures