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The 'Price Tag' singer and LMFAO set to make their debut at Belfast bash next month.
Jessie J has been announced to perform at the 2011 MTV EMAs next month.
Jess will perform for the first time at the event which will be held in Belfast on 6th November.
She has bagged two nominations at this year's ceremony - Best New, Best Push and Best UK & Ireland Act.
She is up against Adele, Bruno Mars, Far East Movement and LMFAO for EMAs.
"I can't quite believe I'm nominated for three awards," Jessie said.
"It's like a dream, I keep pinching myself."
LMFAO are also set to perform for the first time at the awards.
"There are only two things that make a man like me happy - that first dunk in a hot fondue and being nominated and performing on the MTV EMA in Belfast," Redfoo said.
Lady Gaga leads the field with six nominations including Best Video for 'Born This Way'.