1. Her career began at the age of three, when she appeared in television commercials.
2. Her film debut came in 2003, when she played Summer Hathaway in School of Rock.
3. She appeared in a number of minor television roles over several years before coming to prominence as Megan Parker on the Nickelodeon TV series Drake & Josh.
4. A few years later, she landed the role of Carly Shay, the lead character in the Nickelodeon TV series iCarly.
5. As of May 2010, Cosgrove earned $180,000 per episode of iCarly, making her the second-highest-paid child star on television. On February 15, 2013, it was announced that Cosgrove would be starring as Evie in Girlfriend in a Coma, a television series for NBC, but the series was cancelled when Christina Ricci left the production.
6. In 2015 she was cast in the NBC comedy pilot Crowded, created by Suzanne Martin.
7. In music, Cosgrove debuted with iCarly, a soundtrack album released in June 2008, in which she performed four songs.
8. In 2009 she released a five-songs EP, About You Now. Her debut album, Sparks Fly, was released on April 27, 2010.
9. In January 2011, Cosgrove revealed that her second EP would be titled High Maintenance (EP) and also released the first single from the same.
10. The song, titled “Dancing Crazy”, was written by Avril Lavigne peaked at number one-hundred on the Billboard Hot 100.
11. A cover of Cat Stevens’s “First Cut Is The Deepest” was posted on Cosgrove’s official YouTube channel on July 21, 2013.
12. Cosgrove’s first television appearance (aside from commercials) was in 2001 as the voice of 5-year-old Lana Lang in the pilot episode of Smallville.
13. Cosgrove then made her film debut with the 2003 film School of Rock.
14. In the movie, she played Summer Hathaway, a young girl with great ambition and discipline who finds herself adjusting to the free-spirited nature of the new teacher by becoming band manager of the classroom’s rock band.
15. School of Rock was both a box office hit, grossing over $131,282,949 worldwide, She said of the experience of working with Jack Black: “The first week it was like, ‘Oh, my God, that’s Jack Black,’ but two weeks later it was fine.
16. Sometimes the director would say, ‘Jack, you can’t make them laugh so much.'” She cited the scene of trying to sing badly as very difficult.
17. Cosgrove stated that “I got a 45-minute lesson from Jim O’Rourke of Sonic Youth on how to sing badly.
18. I’ve been taking singing lessons for about five years, so getting to sing badly was new.
19. The director kept saying, ‘Try to sing even worse, Miranda,’ so it was weird.”