Prince Williams / Getty Images

Kendrick Lamar's 'i' Samples This Classic Soul Record

Who's that lady?

On Tuesday Kendrick Lamar will return with "i," the first single from his good kid, m.A.A.d city follow-up and while we don't know what Dot will sound like, MTV News was able to confirm the sample that the track was built around.

The Rahki-produced track borrows from the Isley Brothers' 1973 version of their soul hit "That Lady," a source confirmed to MTV News on Monday (September 22).

The song was also sampled by the Beastie Boys on their 1989 track "B-Boy Bouillabaisse" and by Charles Hamilton on "The Awkward Prequel" in 2009.

Last week, Lamar revealed the cover art for the single. The image depicts a member of the Bloods and a member of the Crips street gangs in unity.