Complex sentence: One is in the hidden intro, the second is during a cinematic scene, and the third is during the end credits, and in WWE SmackDown vs. Raw 2008 Famous appears as it's one of the playable songs in the game.
Split into simpler sentences: One is in the hidden intro, the second is during a cinematic scene, and the third is during the end credits. In "WWE SmackDown vs. Raw 2008", "Famous" appears as it's one of the playable songs in the game.