TMZ reports that musicians Eric Reed and Willie Jones III will be entering a lawsuit with Kendrick Lamar. The two jazz musicians claim that the California rap superstar allegedly used portions of their 2010 song 'The Thorn' in his 2011 track 'Rigamortis'.

The two directly claim that the song "isn't merely part of "Rigamortis" ... IT IS 'Rigamortis.'" Reed and Jones III are seeking "at least" $1 million for use of the song as well as all profits and rights.

Elsewhere, Lamar was featured in the brand new Flying Lotus track 'Never Catch Me', which was released yesterday. A proper LP follow-up to good kid m.A.A.d city seems to be on its way soon as well.

Compare 'Rigamortis' and 'The Thorn' for yourself below.