 In 2006, the duo released their second studio and first Holiday album, "Acoustic Hearts of Winter", which peaked at seventy-eight on the "Billboard" 200 and sold 110,000 copies.Their third studio album, "Insomniatic", debuted at number fifteen in the on the "Billboard" 200, selling over 39,000 copies in its first week, making it their highest debut to date.The album's lead single, "Potential Breakup Song", is their most successful single to date, it was certified Platinum and managed to peak at number seventeen on "Billboard" Hot 100, becoming their first top twenty and international hit.