Reception

Billboard said that "the warm vocals along with a gentle acoustic arrangement effortlessly conjure the idyllic California she calls home".

In Australia—where "Bubbly" was used in a promotional video for Seven Network's soap opera Home and Away—, it reached number one on the ARIA Top 50 Singles Chart. It also fared well in New Zealand, where the single reached number six on the composite singles chart. On the issue date of October 6, 2007, "Bubbly" rose from number sixteen to number ten on the Billboard Hot 100, later ascending to number five where it was locked for seven weeks. It also spent fourteen weeks atop the Hot Adult Top 40 Tracks as well as eighteen weeks atop the Hot Adult Contemporary Tracks. In Canada, Montreal's CJFM-FM was the first Canadian radio station to play the song, and other Canadian radio stations began to do so as well. It peaked at number two for three weeks on the Canadian Hot 100. It also reached number nine on CMT Canada's Chevy Cross Canada Countdown, despite not being a predominantly country song.