Shawn Mendes and Fifth Harmony's Camila Cabello are reportedly an item! A source confirmed the couple's relationship [1] status to E! News after the pair was spotted linking up backstage at this weekend's iHeartRadio Music Festival [2]. Shawn, 17, and Camila, 18, have been friends for a while, getting to know each other when he toured with Austin Mahone and Fifth Harmony. This Summer, they both took the stage during Taylor Swift's 1989 tour, too; Shawn opened for the singer and Camila popped up when Fifth Harmony made a surprise appearance for Taylor's August show in Santa Clara, CA. Find out more about Shawn Mendes [3], and check out all the times he was too cute [4].