Colbie Marie Caillat (pronounced /ˈkoʊlbi kəˈleɪ/ (listen); born May 28, 1985) is an American pop singer-songwriter and guitarist from Malibu, California. She debuted in 2007 with Coco, which included hit singles "Bubbly", "Realize", and "The Little Things". In 2008, she recorded a duet with Jason Mraz, "Lucky", which won a Grammy. Caillat released her second album, Breakthrough, in August 2009.
On December 2, 2009, Breakthrough was nominated for Best Pop Vocal Album at the 52nd Grammy Awards. She was also nominated twice for Best Pop Collaboration, for her featured vocals on Mraz's "Lucky" and her background vocals and writing on Taylor Swift's "Breathe", and was part of the group that won Album of the Year for her background vocals and writing on Swift's Fearless. The combined U.S. sales of her first two albums is about 2.5 million, with 4 million sold worldwide, and 10 million singles in the U.S. In 2010 she performed at the Nobel Peace Prize Concert in Oslo, Norway in honour of 2010 Nobel Prize Winner Liu Xiaobo.