Jonathan Thomson (born July 10, 1984), known professionally by his stage name Lo Key, is an American rapper, vocalist, and creator of music and visual arts.

In 2006, Lo Key created the group MISSION : INFECT featuring numerous underground artists including Menacide, Q-Strange, Saint Sinna, BadLuck, Grewsum, T.O.N.E-Z, Malaria, Tha Wikid One, Madd Maxxx, Green Vilin, and more.

[6] In 2016 he released the album Jack Yo Beatz 3, featuring a music video for the song "Nasty", as well as collaborations with Redneck Souljers and The Jokerr.

[citation needed] Lo Key has stated in his music that he suffered from attention deficit disorder (ADD), as well as other mental illnesses.

Lo Key has also stated that he suffers from a phenomenon called sleep paralysis, which he attributes to the inspiration and creation of his albums Shadowland and The Book of Time.