Pop trio N-Dubz and rapper Chipmunk will be fighting it out at the Mobos after each getting a whopping four nominations for the awards.
Both acts are up for best UK act and best song and will have to wait until 30 September to find out who's won.
Dizzee Rascal and Tinchy Stryder are up for three prizes, as is Beyonce.
There was good news for X Factor stars Alexandra Burke and JLS - they've been nominated for best newcomer. JLS could also win best song with Beat Again.
JLS will take on N-Dubz who are nominated for Strong Again and Number One, along with Chipmunk's Diamond Rings, which is also up for best video.
KIG Family with Head, Shoulders, Knees and Toes are the final best song act, while N-Dubz are also up for best album with Uncle B.
Chipmunk will battle Dizzee Rascal, Eminem, Kanye West and Canadian rapper Drake for best hip-hop act.