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Nicki Minaj and Cee Lo Green are the latest names to join the Billboard Music Awards line up.
It was recently announced Rihanna and Jennifer Lopez would be singing at the event.
Minaj is also up for four honors, including Top New Artist, Top Rap Artist, Top Rap Album and Top R&B Song (for Bottoms Up by Trey Songz).
The show will come from Las Vegas on May 22.