<br /> Shawn Mendes finally showed fans some "Mercy" by announcing his new single!<br />The 19-year-old superstar announced his new single – "In My Blood" – will drop this Thursday, March 22.<br />His reveal comes after days of teasing fans on social media with sneak peeks at his new album art, including a massive billboard in Times Square.<br />"In My Blood" may not be the only track Shawn drops this week. <br />
