Rocky's opponent is James "Clubber" Lang, played by Mr. T. Lang is a younger and more aggressive boxer than Rocky. He is brash, arrogant, outspoken, and immensely strong. The film also features professional wrestler Terry "Hulk Hogan" Bollea as the supporting character "Thunderlips". The film's theme song "Eye of the Tiger", was written by the group Survivor at the request of Stallone, and became a smash hit single, topping the US Billboard music charts and received an Academy Award nomination for Best Original Song.