Complex sentence: The song has been referenced several times on the game show itself, including once as a category on the current Alex Trebek-hosted version, and later when Yankovic appeared on "Rock & Roll Jeopardy!".
Split into simpler sentences: The song has been referenced several times on the game show itself. Once as a category on the current Alex Trebek-hosted version, and second when Yankovic appeared on "Rock & Roll Jeopardy!".