In a new cover feature with Billboard, rapper Logic has revealed that he has been working with slacker rocker Mac DeMarco, who has produced a John Mayer-approved track to go on Logic's Supermarket novel soundtrack.

Logic has been a fan of DeMarco for a while, and even got a tattoo back in July to show his love for Mac DeMarco's 2014 Salad Days record.

Over the past month Logic has been sharing a new freestyle each Friday. On 30 November, he uploaded a one-minute freestyle with a beat produced by Mac DeMarco.

Mac DeMarco's last album was 2017's This Old Dog. This year he released a cover of Haruomi Hosono's "Honey Moon".

Last month DeMarco was confirmed to play London's All Points East festival.

Logic's YSIV record is out now. His Supermarket novel will arrive in 2019 via Simon & Schuster. Read the full Billboard cover story.