What Do You Mean? has rocketed to number one - a spot higher than Bieber's biggest U.S. hit to date, Boyfriend, which reached number two in 2012.

The grateful 21 year old, who teared up at the end of an emotional performance of the song at the MTV Video Music Awards last month (30Aug15), posted a video on Instagram on Tuesday (08Sep15) thanking fans for his first Hot 100 number one.

He declared, "Looks like we did it! Finally... You guys are the best."

Meanwhile, another MTV VMAs performer, The Weeknd, is also having a good week after scoring the number two and three spots on the new chart.

Can't Feel My Face drops from one to two, while The Hills rises a spot to three on the Hot 100.

Silento's Watch Me falls to four and OMI's former six-week number one Cheerleader rounds out the new top five.