Rihanna Joins Jay-Z's Roc Nation

Rihanna has joined Jay-Z's "Roc Nation", the management arm of his business empire.

Rihanna made the announcement to the Associated Press and said that she was elated to make the change in management. "[I’m] so excited to take this next step in my career," Rihanna told the AP in a statement.

Jay-Z signed her to Def Jam and served as a mentor to her early in her music career.

Since then, she has evolved into one of the biggest names in music and entertainment.

Rihanna also said that she is starting Rihanna Entertainment to "merge all of her businesses, including music, film, fragrance, fashion and book ventures."

The switch in management comes as her "Loud" LP is slated to release on November 12.