iHeartRadio Music Awards 2021 - Cast

Name	Known for
Ariana Grande Self - Performer Self - Performer See fewer	Don't Look Up (2021)
Lady Gaga Self Self See fewer	A Star Is Born (2018)
Taylor Swift Self - Winner Self - Winner See fewer	Taylor Swift: The Eras Tour (2023)
Oliver Stark Self - Presenter Self - Presenter See fewer	9-1-1 (2018)
Ryan Guzman Self - Presenter Self - Presenter See fewer	The Boy Next Door (2015)
Joel McHale Self - Presenter Self - Presenter See fewer	Community (2009)
Dua Lipa Self - Winner Self - Winner See fewer	Barbie (I) (2023)
Colson Baker Self - Presenter Self - Presenter See fewer	The Dirt (2019)
Demi Lovato Self - Performer Self - Performer See fewer	Camp Rock (2008)
Megan Thee Stallion Self - Winner Self - Winner See fewer	Mean Girls (2024)
LL Cool J Self - Presenter Self - Presenter See fewer	Deep Blue Sea (1999)
Nikki Glaser Self - Presenter Self - Presenter See fewer	Trainwreck (2015)
The Weeknd Self - Performer & Winner Self - Performer & Winner See fewer	The Idol (2023)
Nelly Self - Presenter Self - Presenter See fewer	The Longest Yard (2005)
Chris Martin Self - Presenter Self - Presenter See fewer	The Hunger Games: Catching Fire (2013)
Elton John Self - Honoree Self - Honoree See fewer	Kingsman: The Golden Circle (2017)
Usher Self - Host & Performer Self - Host & Performer See fewer	The Faculty (1998)
Robin Thicke Self - Presenter Self - Presenter See fewer	Agent Cody Banks (2003)
Doja Cat Self - Performer & Winner Self - Performer & Winner See fewer	Doja Cat feat. SZA: Kiss Me More (2021)
Adele Self Self See fewer	Skyfall (2012)
H.E.R. Self - Performer & Winner Self - Performer & Winner See fewer	Judas and the Black Messiah (2021)
Anderson .Paak Self Self See fewer	Shang-Chi and the Legend of the Ten Rings (2021)
Brandi Carlile Self - Performer Self - Performer See fewer	Onward (I) (2020)
Lil Nas X Self - Presenter Self - Presenter See fewer	Lil Nas X: Montero (Call Me by Your Name) (2021)
Ava Max Self - Presenter Self - Presenter See fewer	Scoob! (2020)
Twenty One Pilots Themselves - Winners Themselves - Winners See fewer	Suicide Squad (2016)
French Montana Self - Presenter Self - Presenter See fewer	Deadpool 2 (2018)
Gabby Barrett Self - Presenter & Winner Self - Presenter & Winner See fewer	Gabby Barrett: The Good Ones (2019)
Karim Benz Guest Guest See fewer	The Very Worst Thing That Could Possibly Happen (2023)
Lil Jon Self - Performer Self - Performer See fewer	Scream VI (2023)
Raphael Saadiq Self - Bandleader Self - Bandleader See fewer	Mudbound (2017)
Roddy Ricch Self - Winner Self - Winner See fewer	Roddy Ricch: The Box (2020)
AJR Themselves - Presenters Themselves - Presenters See fewer	Jexi (2019)
Silk Sonic Themselves - Performers Themselves - Performers See fewer	Bruno Mars, Anderson.Paak, Silk Sonic: Leave the Door Open (2021)
Dan + Shay Themselves - Performers & Winners Themselves - Performers & Winners See fewer	Dan + Shay: Tequila (2018)
Tiffany Potter Self - Announcer Self - Announcer See fewer	Red White and Black (2025)