Leave it to Kim Kardashian to come up with an iconic theme for all of her Halloween costumes. The 34-year-old reality star and mom of North and Saint West revealed that she is paying homage to her favorite musical legends this year. On Friday night, Kim and her friend Jonathan Cheban pulled off a spot-on pair costume of Sonny Bono and Cher, which even earned her a compliment from the "Believe" singer herself. Mrs. West also dressed up as Madonna and Michael Jackson at the 1991 Oscars with her sister Kourtney and paid tribute to the late R&B singer Aaliyah as well. Finally, on Halloween night, Kim unveiled her costume as the late Selena Quintanilla. Scroll through and try to keep up with all of Kim's epic Halloween costumes ahead.