Jack Black, Will Ferrell and John C. Reilly sing at the Oscars – 79th Annual Academy Awards®. Subscribe for more #Oscars videos ►► http://osca.rs/subscribeyt #JackBlack #WillFerrell #JohnCReilly #academyawards #comedy #sing #song Jack Black, Will Ferrell, John C. Reilly sing at the 79th Oscars (2007)