Demi Lovato feat. Katy Perry - Heart Attack/Wide Awake (Mashup)

Demi Lovato & Katy Perry (Mashup) E.T Vs. Heart Attack

Wide Awake vs. Ready For It - Katy Perry & Taylor Swift | MASHUP

Sweet but Bad Romance | Lady Gaga vs. Ava Max | Tufos Mashups

Demi Lovato Vs Selena Gomez - Come & Get a Heart Attack (Mashup)

KATY PERRY - WIDE AWAKE SPED UP

Demi lovato Heart attack - Metal cover

[MASHUP] Katy Perry x Coldplay ft. Beyoncé x Justin Biber x Sia x One Direction x Gotye ft. Kimbra

Sledgehammer Attack - Fifth Harmony vs. Demi Lovato (Mashup)

Katy Perry - GIMME GIMME ft. 21 Savage (Slowed + Reverb)

MASH-UP Britney Spears Feat. Katy Perry - Seal It With A Part Of Me

I Knew You Were Trouble vs Heart Attack Mashup

Demi Lovato VS. Katy Perry - Heart Attack & E.T. Mashup

Coldplay vs. Katy Perry - Wide Awake In Paradise

Katy Perry - Wide Awake (Official Video)

Love Me In The USA - Ellie Goulding vs. Demi Lovato (Mashup)

Kesha x Lady Gaga - Blow x Judas (Mashup)

Wide Awake - Katy Perry - Peter Hollens feat. Chris Thompson

[MASHUP] - ITZY X JESSIE J | BOYS LIKE YOU X DOMINO

Demi Lovato - Heart Attack (Rock Version) (Lyric Video)

Melanie Martinez & Selena Gomez - Soap / Good For You Mashup