Jennette Michelle Faye McCurdy was born in Garden Grove, California. She started her acting career in 2000 at the age of eight on MADtv. Since then she appeared in several television series, including CSI: Crime Scene Investigation, Malcolm in the Middle, Lincoln Heights, Will & Grace, Penguins of Madagascar, Zoey 101, True Jackson, VP, Law and Order SVU, Medium, Judging Amy, The Inside, Karen Sisco, Over There and Close to Home.
She became interested in acting after watching Harrison Ford in Star Wars Episode IV: A New Hope right after her mother recovered from breast cancer. In 2003, she had the chance to act with her inspiration, Harrison Ford in the movie Hollywood Homicide.
In 2005, she was nominated for a Young Artist Award for Best Performance in a Television Series - Guest Starring Young Actress for her performance in Strong Medicine as Hailey Campos. She has also appeared in several commercials such as one for Sprint and another commercial for crossing the road safely.
Since 2007, she has a starring role in the Nickelodeon TV series iCarly opposite Miranda Cosgrove, Nathan Kress and Jerry Trainor, as Carly Shay's best friend Sam Puckett. In 2008 she was nominated for a Young Artist Award for her work on iCarly, and for her performance as Dory Sorenson in the TV movie The Last Day of Summer.
She was nominated for a 2009 Teen Choice Award, in the Favorite TV Sidekick category for her work on iCarly. She also was cast to the role of Bertha in Fred: The Movie, a movie based on a YouTube series about Fred Figglehorn.
In June 2008, she announced on her official web site that she was working on her debut album. The first single, "So Close," was released on March 10, 2009. The second single, "Homeless Heart", a cover of a song from Amanda Stott, was released on May 19. The song was released in honor of McCurdy's recently deceased friend Cody Waters, who died at the age of 9 from brain cancer, and 20% of the proceeds were donated to the Cody Waters Foundation.
Jeannette met Cody Waters through St. Jude Children's Research Hospital. Both were released under the Your Tymes music label. After the single "So Close" was released in March 2009, McCurdy announced that her debut album would be released on June 30, 2009. By the time June ended, no album had been released and on July 6, 2009, McCurdy announced she had signed a deal with Capitol Records Nashville.
She released an EP on August 16/August 17 , 2010 which added other songs including "Stronger," "Put Your Arms Around Someone," "Break Your Heart" and "Me with You." It has also been stated that another of her songs, "Stronger" was released later on NOW That's What I Call Music! Vol. 35 on August 31, 2010.
McCurdy's second single, "Generation Love," was released as a digital download on March 22, 2011. This song was released to radio April 25, 2011.
In addition to supporting the Cody Waters Foundation, McCurdy did a "Public Service Announcement" or Safe Kids USA which is aired on Nickelodeon and TeenNick. On June 11, 2011, McCurdy composed and published an article titled "Off-Camera, My Mom's Fight With Cancer" to the Wall Street Journal which describes, in detail, her mother Debra's on-going battle with cancer and how her family is coping with the illness.
McCurdy currently serves as a StarPower Ambassador for Starlight Children’s Foundation, encouraging other young people to commit their time, energy and resources to help other kids and working with Starlight to brighten the lives of seriously ill children.