There are at least 11 artists with this name:

1) King was a British new wave pop band of the mid-'80s
2) KING is an American R&B group from Los Angeles, CA.
3) King is a Canadian black metal band.
4) King is a symphonic death metal band of Slovakia.
5) KING is a Japanese all-female hip-hop group.
6) KING is a Japanese rock band.
7) King is an American metal band.
8) King was an English punk rock band in 1978.
9) King is the creator of Vinland Radio (metal) and the associated podcast.