The rapper rules the list for the first time since "Rockstar" in 2020. DaBaby Alex Grizz/Courtesy UMG Trending on Billboard DaBaby scores his first No. 1 on Billboard ’s Hot Rap Songs chart in nearly six years as “Pop Dat Thang” tops the list dated May 16. The single rises from No. 2 with a gain in all three chart-contributing metrics and a boost from a high-profile remix with GloRilla, Yung Miami and YKNIECE. “Pop Dat Thang,” released on SouthCoast/Interscope/Interscope Capitol, dethrones Don Toliver’s “E85” from the summit. The former champ, which led for 11 consecutive weeks, slides to No. 2. With his new leader, DaBaby achieves his second Hot Rap Songs No. 1, after “Rockstar,” featuring Roddy Ricch, dominated for nine weeks in June – August 2020.…