Name	Known for
Tony Bennett Self - Special Guest Self - Special Guest See fewer	Muppets Most Wanted (2014)
Justin Bieber Self - Special Guest Self - Special Guest See fewer	Justin Bieber: Never Say Never (2011)
Big Time Rush Themselves - Special Guest Themselves - Special Guest See fewer	Big Time Rush (2009)
Michael Bublé Self - Special Guest Self - Special Guest See fewer	Spider-Man 2 (2004)
Javier Colon Self - Special Guest Self - Special Guest See fewer	The Playboy Club (2011)
Neil Diamond Self - Special Guest Self - Special Guest See fewer	The Jazz Singer (1980)
CeeLo Green Self - Special Guest (as Cee-Lo) Self - Special Guest (as Cee-Lo) See fewer	Hotel Transylvania (2012)
Savannah Guthrie Self - Hostess Self - Hostess See fewer	30 Rock (2006)
Megan Hilty Self - Special Guest Self - Special Guest See fewer	Smash (2012)
Carole King Self - Special Guest Self - Special Guest See fewer	A League of Their Own (1992)
Katharine McPhee Self - Special Guest Self - Special Guest See fewer	Smash (2012)
Naturally 7 Themselves Themselves See fewer	Rebirth of Slick: Cool Like Dat (2018)
The Radio City Rockettes Themselves - Special Guests Themselves - Special Guests See fewer	King of Jazz (1930)
Al Roker Self - Host Self - Host See fewer	Robots (2005)
Essential Voices U.S.A. Themselves Themselves See fewer	Christmas in Rockefeller Center (1990)