The Corporation
After the Rock turned into a villain, he teased a face turn before joining the Corporation after betraying Mankind.
He was joined by IC champion Ken Shamrock, Test, Kane, and the McMahon family as well as their stooges. Late editions included the Big Boss Man.
The whole point of the Corporation was that they were the WWE's 'approved' wrestlers. Meaning that people like Steve Austin, the Undertaker, and anyone who could not toe the corporate line were on the outside looking in. This of course made the group instant heels.
The Corporation were seen as Vince McMahon's favorites, guaranteeing them heel heat aplenty. They would go on to feud with both Steve Austin, Mankind, and Undertaker's Ministry of Darkness, the stable with which they would merge with to form the Corporate Ministry, perhaps the silliest stable in wrestling history.