The sneaky YouTube hack that made “rockstar” a number-one hit song
“I done make the hot chart,” 21 Savage boasts on the guest verse of Post Malone’s “rockstar”—a smooth three-and-a-half minute track that, since its release on Sept. 15, has indeed rocketed up the charts to number one on Billboard’s Top 100. But the song’s—and the relatively unknown singer-rapper’s—one-month climb to the top may not be…