Four weeks after WrestleMania, during a tag team match with Ken Shamrock against Mark Henry and Rocky Maivia (later known as The Rock), Hart turned on Shamrock, "snapping" his ankle and "biting his ear" in the process, and becoming a heel once again.[54] After the attack on Shamrock, Hart became the co-leader, with The Rock, of the Nation of Domination, claiming that "Enough is enough and it's time for a change". The Nation's first big feud after Hart joined was against DX. It was during this feud that D-Generation X parodied the Nation of Domination.