Singer/songwriter Shawn Mendes performs at the Melrose Ballroom in New York City. Mendes first came into the public eye as a popular user of the social media platform Vine and at only 18 years old, became one of only six artists to have two No. 1 albums on the Billboard Top 200 all-genre chart at such a young age. Mendes performs some of his hits including “Treat You Better,” “Stitches” and “Mercy.”