Officials at Mattie Music Group, who are claiming rights to the legendary singer's 1975 song "Don't You Want To Stay", have filed a copyright infringement suit against Lamar, reported Ace Showbiz.
In legal papers, label bosses allege Lamar's "I Do This" consists of "nothing more than new rap and hip hop lyrics set to the existing music of Don't You Want To Stay".
The plaintiffs are demanding damages and an injunction to stop Lamar from using the copyrighted song.