Heart Attack Nikki Williams, Demi Lovato, Johan Schuster, Nerina Pallot, Savan Kotecha, Jason Evigan Klavier, Gitarre, E-Gitarre Pop Rock, Volksmusik, Dance-Pop, Teen Pop, Rock Akkorde, Tabulatur, Liedtext, Transposition, MP3
Heartbeat Song Audra Butts, James Adkins, Richard Burch, Jason Evigan, Allan Mitch, Audra Mae Klavier, Gitarre, E-Gitarre, Bass, Synthesizer Pop, Pop Rock, Volksmusik, Erwachsene Contemporary-Musik Akkorde, Tabulatur, Liedtext, Transposition, MP3
