Colbie Caillat's confessional pop is a lot like the Malibu beach on which she was raised: warm, alluring and suffused with a million shades of romance. Released in 2007, “Bubbly” catapulted to smash hit status thanks to the singer and guitarist's campfire strum and vocals so honeyed they practically drip from the speakers. A versatile multi-instrumentalist and songwriter, Caillat has since inched closer to pure pop. In addition to incorporating funky hip-hop beats into her infectious sound, she's explored glitzy club jams and, collaborating with Taylor Swift, smooth Nashville balladry.