Shawn Mendes ❤️ #AMAs [1] pic.twitter.com/yQzIvS1e12 [2]

— ⓔⓝⓔⓡⓙⓘⓝ 🐷🍼 (@Ntn1822) November 20, 2017 [3]

Shawn Mendes has been winning us over this year with his hit single "There's Nothing Holdin' Me Back," but his American Music Awards [4] performance on Sunday night just sealed the deal. The 19-year-old singer and heartthrob [5] hit the stage with just a guitar and his stellar vocals and had us swooning over every minute of it. Yeah, we've officially joined his fan club. Watch his AMAs performance above now!