Olstead was born in Kingwood, Texas, to Christopher Eric Olstead and Rebecca Lynn Jeffries. Olstead is of Norwegian ancestry. As a child actress, she made films and commercials from age eight onwards. She also attended Centre Stage theatrical school and is mentioned on their website's alumni. From 2002 to 2006, she appeared in the TV sitcom Still Standing as middle sister Lauren Miller. Olstead was presented the Young Artist Award for Best Performance in a TV Series (Comedy) - Supporting Young Actress for Still Standing in 2002. She also had a small part in the 2004 film 13 Going on 30. She is currently (2011) co-starring in the ABC Family series The Secret Life of the American Teenager, about fifteen-year-old Amy Juergens's struggle through her unexpected pregnancy and how it affects her peers. Olstead plays the character of Madison Cooperstein, who is one of Amy's best friends. In 2004, Olstead released a self-titled album of jazz songs and pop standards for Warner Bros. Records to good reviews: since her previous releases had had limited distribution, this album was considered her true debut. She subsequently performed in Berlin during the Live 8 concert on July 2, 2005. Olstead also recorded with trumpeter Chris Botti on his 2005 album To Love Again: The Duets and appeared on the 2006 DVD Chris Botti Live with Orchestra and Special Guests. Her singing style is influenced by such great jazz vocalists as Ella Fitzgerald and Sarah Vaughan. Reportedly, her musical talent was discovered by composer David Foster, who produced her 2004 album. She later also performed with Foster on The Oprah Winfrey Show. A follow-up album entitled "Skylark" (Renee Olstead album) "Skylark", also produced by Foster, was originally announced for release in 2005, but it was subsequently pushed back several times, with release dates in the summer of 2006 and early 2007 being mentioned on online retailers such as Amazon.com. It was then scheduled for a June 2008 release, but was delayed once again. It was finally released on January 27, 2009, nearly four years after it was originally announced. On September 14, 2011, as the result of a criminal complaint initially made by actress Scarlett Johansson, the FBI announced it was investigating the alleged hacking of celebrity cellphone and email accounts and the dissemination of explicit nude photographs of Johansson and around 50 other celebrities, including Olstead. As a result of the investigation, Christopher Chaney, 35 of Jacksonville, Florida, was arrested last October. Prosecutors are seeking $160,000 restitution to victims ($76,000 for Olstead herself) in addition to a 71-month sentence. Olstead is a vegan. She appeared in a PETA ad, Fish Are Friends Not Food, urging her fans to go vegan. In 2012, Olstead joined PETA's campaign to free the elephant Mali from captivity at the Manila Zoological and Botanical Garden where she has been alone for the last three decades. Olstead starred as Kaitlan in the 2013 supernatural thriller The Midnight Game and as Jess Felton in the 2014 technology-themed thriller film Unfriended. Renee married pianist Tommy King and legally took his last name.