Jessie J and Brandy Perform 'Conquer the World' at iTunes Festival

Jessie J celebrated the U.K. release of her sophomore album Alive with a performance at the iTunes Festival in London on Monday. In addition to singing her hits, the blonde-haired Brit brought out Brandy to duet on their empowering anthem “Conquer the World.” The ladies put their powerful pipes on display while belting out the big ballad.

“So overwhelmed right now! Partying with my closest people! Thank you iTunes thank you everyone who gave me love tonight. My heart is heavy with love,” tweeted Jessie.

See the powerhouse divas team up and shut down the stage.