Nicki Minaj, 31

Singer and rapper Nicki Minaj turned 31 today. Minaj joined Young Money Entertainment in 2009, after being discovered by Lil Wayne. She appeared in song alongside Lil Wayne, Ludacris, Usher, and Beyonce. Her debut album Pink Friday peaked at No. 1 on the Billboard 200 Chart and was certified platinum. She became the first female solo artist to have seven singles simultaneously charting on the Billboard Hot 100.
Her second album Pink Friday: Roman Reloaded also topped the Billboard 200 Chart. She served as a judge on American Idol, but left after one season. She is currently working on her third album.

AnnaSophia Robb, 20

Actress AnnaSophia Robb turned 20 years old today. She gained fame from her roles in Because of Winn-Dixie and Charlie and the Chocolate Factory in 2005. From there she went on to star in Bridge to Terabithia, Race to Witch Mountain, and Soul Surfer. She won two Young Artist Awards for her role in Bridge to Terabithia.
Robb currently stars in The CW's The Carrie Diaries, a prequel to HBO's Sex and the City, and has won a Young Hollywood Award for her role.