The 1979 World Series was a best-of-seven playoff between the National League (NL) champion Pittsburgh Pirates (98–64) and the American League (AL) champion Baltimore Orioles (102–57) to determine the Major League Baseball championship. In winning, the Pirates became the fourth team ever to come back from a three games to one deficit to win the World Series. This marked the second time in the 1970s that the Pirates won a World Series Game 7 on the road against the Orioles, the previous time being in 1971. The Pirates were known for adopting Sister Sledge's hit "We Are Family" as their theme song during the season. Won the 1979 World Series on October 17, 1979. Wiki link