Kevin MacLeod (born September 28, 1972) is an American composer and music producer.MacLeod has composed over 2,000 pieces of royalty-free library music and made them available under a Creative Commons copyright license.This licensing allows anyone to use his music for free, as long as he receives credit for the song, and has led to his music being used in thousands of films, millions of videos on YouTube, and in video games such as Kerbal Space Program.As of 2017, his music is featured on one of the live feeds from the International Space Station, Earth From Space.One of his compositions, "Monkeys Spinning Monkeys", is among the most-played on TikTok; from January through June 2021 it was played over 31.6 billion times.Because of his amount of compositions, and frequent use, he is likely one of the most listened to musicians of all time, however it is nearly impossible to get an exact number due to the amount of times his music has been used.