Rexha performed the song on '' The Tonight Show Starring Jimmy Fallon '' , on the Teen Choice Awards , on the 2018 MTV Europe Music Awards . She also performed at the iHeartRadio Music Festival ( along with " Meant to Be " ) and on '' Big Brother '' and '' America 's Got Talent ''
2018 MTV Europe Music Awards
2018 MTV Europe Music Awards
I'm a Mess (Bebe Rexha song)