On Sept. 19, 2015, Justin Bieber knocked The Weeknd off the top spot with his single “What Do You Mean?” The song climbed to No. 1 on the charts. Bieber said the track marked a new sound for him and showed growth as an artist. Fans and critics noticed the shift. The single’s catchy melody and tight production helped it stand out on radio and streaming playlists. It also gave Bieber momentum heading into new releases and tour dates. For many listeners, “What Do You Mean?” became a defining pop moment of 2015.
