4. Kane (WWE Championship)
When Kane made his explosive debut in October 1997, The Big Red Monster instantly became one of WWE’s hottest stars. His immediate impact fast-tracked him to main event status, resulting in him winning the WWE Championship against “Stone Cold” Steve Austin in a First Blood match at King of the Ring 1998.
However, Kane’s reign as WWE Champion proved remarkably short-lived. Just 24 hours after capturing the title, he lost it back to Austin on the following Monday Night Raw. Kane would have a decent run as the World Heavyweight Champion later in his career, but this was the only time he was the WWE Champion.