Fletcher, Liily, Rae Sremmurd and Sia will also appear at the concert, which airs live from Miami on December 31
The singer has been teasing her return with posters that have been spotted in L.A.
The album will finally be released in the US via Capitol Records early next year, with a UK release still undetermined
The Foo Fighters drummer is heard requesting a Def Leppard cover for Cyrus to sing
Josh Homme, Alanis Morissette, Miley Cyrus and more also played at the Kia Forum
Last night's show also saw Justin Hawkins, Joan Jett, Travis Barker and more perform
Photographer Robert Barbera is suing the pop star for her alleged unauthorised use of his image
The singer and 'Grease' actress had battled cancer since 1992
Kiss' Gene Simmons, Joan Jett, Mötley Crüe's Nikki Sixx and members of Queen will also perform in honour of the late Foo Fighters drummer
Paramore, Liam Gallagher and Yeah Yeah Yeahs will also perform at the festival in November