3. Ronnie James Dio and Meatloaf in Tenacious D: The Pick Of
Destiny (2006)

[youtube]http://www.youtube.com/watch?v=AmCtU1C3dcc[/youtube]

Tenacious D’s first film had numerous cameos, including Dave Grohl as
Beelzebub himself. However, the best cameos arguably came during the
“Kickapoo” scene. Having Meatloaf play Jack Black’s father, while also
having the late Ronnie James Dio popping out of a poster to give young
JB guidance, almost makes us forget how big of a commercial flop
Tenacious D: The Pick Of Destiny was.