Justin Bieber had a great night at the American Music Awards, winning each of the four prizes he was nominated for.
The teenage superstar beat Katy Perry and Lady Gaga to win artist of the year and even reduced Usher, who was also up for the award, to tears.
Usher was one of the first people to spot the Biebster's talent.
And after seeing Justin also win best pop album, best pop male, and breakthrough artist, Usher said he cried because he was so proud of him.
It wasn't all about the Bieber though.
There were performances from Rihanna and Taylor Swift, who also picked up an award each. Rihanna was named favourite soul / R&B female, while Taylor won favourite country female.
The Black Eyed Peas were also on hand to collect the award for favourite pop/rock band.