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Demi Lovato and Taio Cruz got together Tuesday for a big announcement.
The two music stars had the honor of announcing the nominees for the 2010 American Music Awards.
Not surprisingly, Justin Bieber, Eminem, Ke$ha, Lady Gaga and Katy Perry were all nominated after dominating the charts this past year.
With five nominations each, Eminem and Lady Antebellum lead the AMA race. Bieber follows closely with four nominations, while B.o.B., Perry, Ke$ha and Usher took three noms each.
Continuing a four year new-media tradition, winners will be determined by online voting at www.amavote.com -- voting is live now.
The ceremony will take place at L.A. LIVE's Nokia Theater in downtown Los Angeles on Sunday, November 21st, airing that night on ABC.