Prima J是由Janelle Martinez 和Jessica Martinez 2人于07年组合而成,是一对具有墨西哥血统的美国姐妹花。她们的处女砖Inside Out已经录制完毕,在08年6月17日正式发行。
Prima J is an American pop musical duo from Rosemead, California that is composed of Mexican American cousins Janelle Martinez and Jessica Martinez. They made their debut in 2007 with the single "Rockstar" for the Bratz Motion Picture Soundtrack. They were discovered by former Wild Orchid member Stefanie Ridel. They have recently completed the recording of their debut album, which will be released June 17, 2008. Prima J also makes a brief appearance in Bratz, auditioning for the school talent show, and three of the stars of Bratz, Logan Browning, Janel Parrish, and Nathalia Ramos, appear in the Rockstar music video. In the Bratz, they also sang the brief lyrics of "Take It To The Maximum" when Logan Browning had done her cheerleading, "It's My Party" lyrics when Logan Browning was doing the geeky girl lipgloss and gave the geeky girl her necklace in the chapter of the "operation mingle" that Nathalia Ramos had decided on at the lunch courtyard table, and "Kick It" during their audition for the school talent show.