Colbie Caillat's on her cellphone in New York, describing the concept of the video for "Realize" that she just shot. It's going to be her next single, once her infectious first hit "Bubbly" finally ...

Colbie Caillat's "Bubbly" illustrates the difference between bubbling under and bubbling over. A year ago, Caillat (pronounced "kah-LAY") was working at the front desk of a Malibu, Calif., tanning ...