"What Do You Mean?" is a song by Canadian singer Justin Bieber. It was released on August 28, 2015, by Def Jam as the lead single from his fourth studio album Purpose (2015). The song was produced by MdL and co-produced by Bieber.
It was featured in several year-end lists of best songs of 2015. Commercially, the song topped the charts in several countries, including Canada, Ireland, New Zealand, and Norway. In Australia, the United States and the United Kingdom, "What Do You Mean?" was Bieber's first number-one single. The song's music video features Bieber in bed with a young woman, Xenia Deli, and masked men kidnapping them, as well as an appearance from actor John Leguizamo. Since its release Bieber has mentioned that the song is about his relationship with Selena Gomez.