There are, at least, 4 artists who use the moniker "CL": 1. CL is a Korean female rapper and leader of the group 2NE1.
2. CL is the name of a Portuguese project created in August of 2006
3. CL is also the name of a French 1-person project, who makes subtle droning / electroacoustic soundscapes, using various string instruments as the main sound source.
4. CL (aka Chaotic Lynx) is a rapper from Central Islip, NY currently signed to the Japanese Goon Trax label.

Read more about CL on Last.fm.