After releasing his debut mixtape, Been About the Benjamins, in 2013, Rich the Kid, 25, gradually climbed the ranks of the Atlanta scene, picking up co-signs from Gucci Mane and Young Thug. Now, thanks in part to Kendrick Lamar, he suddenly has two singles gaining on the Billboard Hot 100: viral dance hit “New Freezer” (featuring Lamar; No. 43) and its catchy, slow-rolling follow-up, “Plug Walk” (No. 25). Ahead of his major-label debut -- the trap-flavored The World Is Yours, out March 30 -- and on the heels of signing with Maverick’s management arm, Rich the Kid explains how he became ATL’s next big thing.