"Bubbly" is a song by American singer–songwriter Colbie Caillat from her debut album, Coco (2007). Written by Caillat and Jason Reeves and produced by Colbie's father, Ken Caillat, the song was released as the album's lead single in May 2007. It remains Caillat's biggest hit single in the USA to date, and her only one to reach the Top 10 of the Billboard Hot 100.