What job did Miranda Cosgrove had before being a singer and actress?

Miranda Cosgrove didn't have any other jobs before becoming a singer and actress. She started acting at a young age and her first major role was as Megan Parker in the Nickelodeon sitcom "Drake & Josh". She then went on to star in the movie "School of Rock" and other Nickelodeon shows. She started her singing career with the release of her debut album "Sparks Fly" in 2010.