Jay-Z has added the biggest star yet to hisRoc Nation Management company:Rihanna is parting ways with manager Marc Jordan to join up with Jigga’s fledgling company. She toldthe Associated Press, that she is “so excited to take this next step in my career.”

Jay-Z, who has teamed withRihanna on hits like “Umbrella” and “Run This Town,” initially signed the singer to Def Jam in 2005, when he was the company”s president.

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The singer will also launch her own company, Rihanna Entertainment, to “merge all of her businesses, including music, film, fragrance, fashion and book ventures.” Rihanna joins Roc Nation artists like Wale, Mark Ronson, J. Cole, the Tings Tings and, most recently, Willow Smith of “Whip My Hair” fame.

Rihanna’s next album,Loud, is due out November 16th.