'King Kunta' hitmaker Kendrick Lamar will perform live at President Barack Obama's final Fourth of July barbecue.

The event, which takes place on the White House’s South Lawn, is held annually for members of the military and their families, and Janelle Monáe will also perform. 

Back in February, Lamar told Grammy.com that Prince was due to feature on his latest album, but unfortunately it didn't happen because there wasn't adequate time:

"Prince heard the record, loved the record and the concept of the record got us to talking. We got to a point where we were just talking in the studio and the more time that passed we realised we weren't recording anything. We just ran out of time, it's as simple as that."

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Watch Kendrick Lamar in action here: