K-1P Vocaloid debut 5th anniversary single "Heart Beat" released! As a single cut song from GUMI feat.K-1P of 2nd full album "Galaxy Key", being distributed in high-quality hi-res sound source! The sound of the waves heard in the intro makes you imagine a calm everyday life, and the sudden development from there is the highlight, and it is a melodious and rock song with a sense of speed that K-1P is good at. K-1P Official twitter: https://twitter.com/k_1p