"Runnin" is a song by Atlanta-based rapper 21 Savage and American record producer Metro Boomin. It was released on October 2, 2020, as the opening track from their collaborative album Savage Mode II. The "haunting" song samples Diana Ross' 1976 song "I Thought It Took a Little Time", with 21 Savage delivering lethal threats to his enemies in a casual fashion. The official video sees 21 take a victory lap through the streets of his hometown, celebrating his Grammy award for "A Lot". It was serviced to US rhythmic radio on October 13, 2020, together with "Mr. Right Now" as the dual lead singles from the album. Debuting and peaking at number nine on the Billboard Hot 100, it is Metro Boomin's highest charting song as a lead artist; it was also 21 Savage's highest charting song as a lead artis