Will Ferrell took his fandom for USC to a whole new level Saturday, leading the Trojans out of the tunnel in their Pac-12 opener against Stanford.

Ferrell, who attended USC before becoming a successful movie star and comedian, is an unabashed Trojans fan, and has been involved in quite a few football traditions, including leading the band as Tommy Trojan and crashing a speech by former coach Pete Carroll.

Here are a few other celebrity college football fans:

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