Ariana Grande Birthday: Rain On Me, Stuck With U - 5 Best Collaborations Of the American Pop Singer

American pop singer, Ariana Grande gained fame as an actress, portraying Cat Valentine on the Nickelodeon series Victorious and Sam & Cat. Although Grande's singing talent truly came to the fore after she began her career as a soloist. Today, she is one of the biggest pop icons and has some of the biggest billboard hits to her name. On her birthday, we look at some of her biggest hits.