Justin Bieber has dropped the new music video to his single, "All That Matters." Bieber enlisted model Cailin Russo for the visuals, casting the 19-year-old California native as his love interest in the clip. In "All That Matters" the two are shown canoodling on a motorcycle, with Bieber later watching Russo dance and then pushing her up against a wall. Bieber first teased the mystery woman in November when he posted a photo to his Instagram of Russo kissing his cheek. Check out Bieber's "All That Matters" video below.