What Do You Mean

"What Do You Mean" is a song by Canadian singer Justin Bieber, released on August 28, 2015. It is written by Justin Bieber, Jason "Poo Bear" Boyd, and Mason Levy, with production by MdL. The song is in the original key of E major and belongs to the pop and tropical house genres. "What Do You Mean" became Bieber's first number-one single on the Billboard Hot 100 chart. The track gained significant popularity and commercial success worldwide, reaching the top ten in several countries. The melody of the song is characterized by a catchy and upbeat tune, with a blend of electronic elements and Bieber's signature smooth vocals.