Before Colbie Caillat or her band even took the Orpheum stage Sunday came a video game commercial that featured her singing “Bubbly.’’ Besides pushing the biggest hit of her short career right out front, it also cast Caillat as someone working to sell her audience something.
She came on stage and kept peddling. (She would also return to “Bubbly’’ as her final song.) She mentioned her new album by name at least three times, as though worried the crowd would forget. And it may have been good-natured ribbing when she pointed out that her stage manager was wearing the women’s model of her tour T-shirt. But when he came out one song later wearing the men’s version, it felt like he was showing off the merchandise available in the lobby.