Nas is about to be very busy promoting the 20th anniversary reissue of his legendary Illmatic album, but for now the rapper has showed up in two completely different places to talk about two completely different things.

Firstly, on Martin Luther King, Jr. Day, Nas participated in a roundtable discussion on the state of the U.S. prison system alongside Angela Davis. And then secondly, on a much, much lighter note. Nas phoned in to Annie Mac's Radio 1 show this Sunday to pick a few of his favourite nighttime tracks for a Bedtime Mix.

Stream the mix here, and watch the roundtable below.

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