#3. AJ Styles

At the 2016 Royal Rumble, AJ Styles shocked the world when he appeared as #3 in the Royal Rumble match.
For years, fans had wondered whether the Phenomenal One would join WWE, and in the three years since, Styles has had an epic career, including two reigns as WWE Champion. But in 2001, a much younger Styles appeared briefly in WCW, as part of a new influx of Cruiserweights in the dwindling company.
The Phenomenal One would even compete with Air Paris in a tournament to crown the first ever WCW Cruiserweight Tag Team Championships. Unfortunately for WCW, and Styles, it would be too little, too late.
The Cruiserweight Tag Team Titles would only last for eight days before the company's closure, and Styles would join the new NWA: TNA promotion the next year.