Get ready to feel very emotional with "The Hardest Mistakes [Popkong Mix] [feat. Cassadee Pope]" by I See Stars. With a 125 BPM and 4 time signature, the rhythms flow in A major. Spanning 4 minutes and 21 seconds, "The Hardest Mistakes [Popkong Mix] [feat. Cassadee Pope]" radiates high energy from start to finish. Let the very emotional vibes of this track carry you away.