In 2015, 21 Savage collaborated with his cousin Young Nudy on "Air It Out," which became one of his early hits.

At the time, Nudy was still in the nascent stages of his career, but the song served as a launchpad for his current success. "When I did that 'Air It Out; shit with Savage, goddamn, it was just like, 'I can do some shit,'" the Atlanta artist told HotNewHipHop in October. "Savage really got me on that rap shit. Shout-out to cuz, you feel me."

Since dropping his Nudy Land project in 2017, Young Nudy has progressed into a promising young star in his own right. Monday, he took another step forward with the release of a fresh 21 Savage collaboration called "Since When." Produced by Kid Hazel, it's another icy cut that chronicles the realities of street life in Atlanta. The duo also unleashed an accompanying music video for the song.

Nudy is still closely tied to his Zone 6 roots, and the scrappy mentality of his home turf comes through clearly in his music. As he explained to HotNewHipHop, "The area I’m from, where I be at, the Paradise East Apartments—sheeeit, ain’t nothin' but a whole buncha gang shit goin on 'round that motherfucker. Just a whole buncha bullshit. I ain’t gon’ say too much, you feel me. N*ggas just be on the real bullshit."

21 Savage and Nudy have discussed plans for a full joint project together, but they haven't shared specific details. Before that day arrives, you can watch the iNightLyfe-directed video above.