Justin Bieber has been dethroned -- by his own master.
According to EOnline, Usher schooled his protege by outselling the teen icon by nearly 40,000 albums.
Bieber's "My World 2.0" dropped to #2 on the Billboard charts in its second week with 291,000 copies sold.
Usher took over the #1 spot, selling 329,000 copies of his brand new album "Raymond vs. Raymond."
Much to learn you have, young padawan.