#1: The Rock and The Undertaker

Two of Wrestling's biggest ever stars, The Rock and The Undertaker are best known for their respective singles careers, which including many, many reigns as World Champion.
But in late 2000, the pair were somehow able to get along enough to become WWF Tag Team Champions.
Meeting Edge and Christian on the December 18, edition of Monday Night RAW, the Deadman and the Brahma Bull attempted to one-up each other, after facing off earlier that month in the first-ever 6-Man Hell in a Cell match for the WWF Championship at Armageddon.
Unfortunately, this reign did not last long as the pair of Canadians would win back their tag titles the very next night, thanks in part to their good friend and special guest referee, reigning WWF Champion Kurt Angle.