On February 22, 1998, Steiner joined the nWo at SuperBrawl VIII, by attacking his brother Rick while they were defending the WCW World Tag Team Championship against The Outsiders. The next night, on "Nitro", he adopted a new gimmick, dyeing his hair and beard blond and further increasing his muscle mass. Scott then adopted the nicknames "White Thunder", in reference to his bleached hair and goatee and his all-white singlet, and "Superstar", as a homage to "Superstar" Billy Graham. However, he soon discarded both nicknames, and instead proclaimed himself as "Big Poppa Pump". Steiner further altered his attire as he began wearing sunglasses and chain mail headgear as part of his ring entrance outfit. He then began teaming with former rival Buff Bagwell and remained a member of the nWo until the group disbanded in early 1999.