Chezy (real name Robin) released his first custom chart for Guitar Hero III in April 2008. From that point onwards, he kept charting infrequently over the years, but still built a huge portfolio of custom songs. Things got more serious when he was invited to join Carpal Tunnel Hero 2 in 2017 and started converting all of his GH3 custom songs to Clone Hero. In 2018, he participated in most of the setlists being released in that year, and eventually released his own setlist called CHARTS, which is a collection of his 600 Clone Hero charts, in early 2019. He's also known for ruining Anti Hero by charting Kero Kero Bonito's infamous song Flamingo.