Colbie Marie Caillat (born May 28, 1985 in Newbury Park, California) is an American pop singer-songwriter and guitarist from Malibu, California. Her father, Ken Caillat, co-produced Fleetwood Mac's Rumours and Tusk albums; Caillat recalls being around the likes of Mick Fleetwood and John McVie as a child.

The popularity of Caillat's MySpace profile led her to become the number-one unsigned singer in her genre for four months. Her popularity on the social network was partially due to her song "Bubbly," and the songs on her profile have been played more than forty-two million times (as of May 31, 2008). For the week of July 17, 2007, "Bubbly" was featured on the iTunes Store as the free "Single of the Week". The promotion coincided with the release of Coco, her debut studio album. Caillat was also spotlighted by Rhapsody during the 2007 Black Friday Sale at Best Buy.

According to her MySpace profile, Caillat was first inspired to start singing at age 11 when she first heard the Fugees' 1996 version of the song "Killing Me Softly", made famous by Roberta Flack in 1973. Her MySpace profile also states that, though trained at piano from an early age, Caillat did not begin playing guitar until age nineteen. She also auditioned at least once for the television show American Idol, but never made it to the Hollywood rounds.

In May 2008, Caillat recorded a duet with Jason Mraz, called "Lucky," on his album, We Sing, We Dance, We Steal Things. The same month, Caillat recorded a cover of the song "Kiss the Girl" from The Little Mermaid for Disney's DisneyMania vol. 6 CD.

Caillat is currently shooting another music video in Hawaii for her song "The Little Things."

After touring with The Goo Goo Dolls and Lifehouse in 2007, she is now the supporting act for John Mayer in his 2008 Summer Tour.