 Complete the following phrase:  The main feud heading into Wrestling Classic was between Hulk Hogan and Rowdy Roddy Piper, with the two battling over the WWF World Heavyweight Championship. In 1985, Piper became the top heel of the promotion after he spoke out against the burgeoning Rock n Wrestling connection, which led to a confrontation with Hogan. In February, they faced each other at MTV special The War to Settle the Score for Hogans WWF title, in which Hogan retained his title by disqualification. Their feud led to the development of WrestleMania. In the main event of the 