3:40 Demi Lovato - Heart Attack (White Sea Acapella Remix) (Official Audio) 3:36 Demi Lovato - Heart Attack (Official Video) 3:45 Demi Lovato - Heart Attack (White Sea Acapella Remix) 3:39 Demi Lovato- Heart Attack White Sea Remix (Acapella) 3:40 Demi Lovato Heart Attack (White Sea Acapella Remix) 3:38 Demi Lovato Heart Attack White Sea Acapella Remix) 3:43 Demi Lovato - Heart Attack (White Sea Remix) (Official Audio) 3:19 Heart Attack - Demi Lovato Tiktok version 3:56 Demi Lovato - Heart Attack (Britain's Got Talent 2013) 3:30 Demi Lovato - Heart Attack (Studio Acapella) 3:54 \"Heart Attack\" - Demi Lovato (Sam Tsui & Chrissy Costanza of ATC) 4:02 Active Child - Hanging On (White Sea Remix) 3:35 Demi Lovato - Heart Attack (Altered Acapella) 2:08 Bryana Salaz - Heart Attack - Demi Lovato (cover) l The Voice 3:32 Demi Lovato - Heart Attack (HQ DIY Acapella) 3:38 Demi Lovato - Heart Attack (White Sea Acapella Remix) 3:59 Demi Lovato - Heart Attack (Rock Version) (Lyric Video) 3:30 Demi Lovato - Heart Attack (Official Studio Acapella) 3:30 Demi Lovato - Heart Attack (Lyrics) 3:43 Heart Attack (White Sea Acapella Remix) 3:38 Demi Lovato - Heart Attack (White Sea Remix) 0:15 HARDEST VOCAL CHALLENGE! - HEART ATTACK BY DEMI LOVATO