Post Malone's "Circles" returns to the top of the Billboard Hot 100 chart for a third total week at No. 1. The song leads again after a four-week interruption by The Weeknd's "Heartless" (for one frame) and Mariah Carey's "All I Want for Christmas Is You" (for three). Meanwhile, Maroon 5's "Memories" leaps from No. 9 to N