Bobby Horne began his professional wrestling career in the early 1990s. He achieved his greatest recognition in the World Wrestling Federation (WWF,now WWE) as "Mo," partnering with Mabel (Glenn Jacobs,later known as Kane). The duo, managed by Oscar, quickly gained notoriety.
Mo and Mabel unexpectedly won the WWE Tag Team Championships at a house show on March 29, 1994, defeating The Quebecers. Footage of their matches from this period showcases their powerful style. However, their reign was short-lived, losing the titles in a rematch just two days later on April 1, 1994. Oscar, their manager, was known for rapping on his way to the ring, adding to their unique presentation.