In 2010, young actress Ariana Grande busted into the scene in her role as Cat Valentine in the hit Nickelodeon show Victorious. Victorious ended in 2013, and that same year, Grande starred in her own Nick show, Sam & Cat , a spinoff of Victorious . From there, Grande shot to superstardom and is one of the most popular singers in the world. However, Grande has not given up her love of acting....