Comparison of Heartbeat's music quality to mainstream high-production tracks.

Moment at 3:44 in 1.44 Million subs, 1.2 Billion views - Zero.Miz-Kun joins Heartbeat! by Freedom!.

1.44 Million subs, 1.2 Billion views - Zero.Miz-Kun joins Heartbeat!

Saved by Heartbeat Moments.