Name	Known for
Ryan Seacrest Self - Host Self - Host See fewer	American Idol (2002)
Simon Cowell Self - Judge Self - Judge See fewer	Scary Movie 3 (2003)
Ellen DeGeneres Self - Judge Self - Judge See fewer	The Ellen DeGeneres Show (2003)
Kara DioGuardi Self - Judge Self - Judge See fewer	Get Smart (2008)
Randy Jackson Self - Judge Self - Judge See fewer	The Truth About Cats & Dogs (1996)
Lady A Themselves (as Lady Antebellum) Themselves (as Lady Antebellum) See fewer	American Honey (2016)
Antonio Banderas Self - Guest Self - Guest See fewer	The Mask of Zorro (1998)
Crystal Bowersox Self Self See fewer	American Idol (2002)
Lee DeWyze Self Self See fewer	Lee DeWyze: Fight (2014)
Cameron Diaz Self Self See fewer	Vanilla Sky (2001)
Casey James Self Self See fewer	American Idol (2002)
Aaron Kelly Self Self See fewer	American Idol (2002)
Michael Lynche Self Self See fewer	American Idol (2002)
Siobhan Magnus Self - Contestant Self - Contestant See fewer	The Eve (I) (2015)
Rascal Flatts Themselves Themselves See fewer	Keeping Up with the Joneses (2016)
Shakira Self Self See fewer	Zootopia (2016)
Sons of Sylvia Themselves Themselves See fewer	Carrie Underwood: An All-Star Holiday Special (2009)
Mark Thompson Announcer Announcer See fewer	The Day After Tomorrow (2004)