text:  A couple of long-running favorites are ruling the Billboard music charts. Post Malone's country song, I Had Some Help, is back at number one. And Taylor Swift is still holding strong on the albums chart, as we hear from NPR's Anastasios Sioulkas. Last week, pop star Sabrina Carpenter briefly interrupted Post Malone's reign on the Billboard 100 chart. But now, he and Morgan Wallen are back on top.