Rocky sat down with MSNBC’s The Grio to break down one of the most talked about records from this week, his 90′s-feel posse cut “1Train” and how the record came to be.

Be sure to pick up Rocky’s Long.Live.A$AP when it drops on January 15.

OS REWIND: Big Boi – Lines (feat. A$AP Rocky & Phantogram) (Live in NYC)
OS REWIND: A$AP Rocky – LONG LIVE A$AP