Name	Known for
MacKenzie Bourg Self - Contestant Self - Contestant See fewer	Spare Parts (I) (2015)
Harry Connick Jr. Self - Judge Self - Judge See fewer	Hope Floats (1998)
David Cook Self - Musical Guest Self - Musical Guest See fewer	American Idol (2002)
Trent Harmon Self - Contestant Self - Contestant See fewer	Ice Age: Collision Course (2016)
Jennifer Lopez Self - Judge Self - Judge See fewer	Hustlers (2019)
Katharine McPhee Self - Musical Guest Self - Musical Guest See fewer	Smash (2012)
Dalton Rapattoni Self - Contestant Self - Contestant See fewer	MyMusic (2012)
La'Porsha Renae Self - Contestant Self - Contestant See fewer	La'Porsha Renae: Already All Ready (2017)
Ryan Seacrest Self - Host Self - Host See fewer	American Idol (2002)
Sia Self - Guest Mentor / Self - Musical Guest Self - Guest Mentor / Self - Musical Guest See fewer	Sia: Chandelier (2014)
Keith Urban Self - Judge Self - Judge See fewer	Act of Valor (2012)
Steven Van Zandt Self - Guest Mentor Self - Guest Mentor See fewer	The Sopranos (1999)