Willow Camille Reign Smith (born October 31, 2000), often known simply as Willow, is an American actress and singer. She is the daughter of Will Smith and Jada Pinkett Smith, and the younger sister of Jaden Smith. Smith made her acting debut in 2007 in the film I Am Legend and later appeared in Kit Kittredge: An American Girl alongside Abigail Breslin. She received a Young Artist Award for her performance.

Apart from her acting she launched a music career in the fall of 2010 with the release of her singles "Whip My Hair", "21st Century Girl", and signing to her current mentor Jay-Z's record label Roc Nation. "Whip My Hair" has peaked at #11 on the Billboard Hot 100. The video was nominated for Video of the Year at the BET Awards of 2011.

In June 2010, Smith's mother Jada Pinkett Smith announced in an interview on Lopez Tonight that Smith would be releasing an album. Smith then released her first single, "Whip My Hair", which went platinum in the US and peaked at number 11. In the UK the single peaked a number 2. Smith soon after announced her next single, "21st Century Girl". After she performed the song on The Oprah Winfrey Show, she released it the next day on February 3, 2011. The video was released March 9, 2011. The single had poor chart performance both in the US and UK.

On October 6, 2011, "Fireball", a collaboration between Smith and rapper Nicki Minaj, was released. "Fireball" was a commercial failure, failing to chart in any type of music market, and her first song to miss the Billboard Hot 100. Smith's producer announced that they were almost finished working on her debut album, Willow: You Think You Know Me, and it should be done soon. He also said it has a similar style to "Whip My Hair". He confirmed that the next single would be "Rock Star". The title of the album was later announced to be Knees and Elbows. It was slated that it would be released around April 2012. On July 2, 2012, Smith released "I Am Me" music video at the BET Awards.