Mendes started attracting viewers after he posted a cover from Justin Bieber "As Long As You Love Me" on the social video app Vine in 2013 and got 10,000 likes and as many followers the next day.
Mendes mulai menarik pengikut setelah dia menggunggah sebuah cover lagu berjudul "As Long As You Love Me" milik Justin Bieber di aplikasi Vine pada tahun 2013 dan mendapatkan 10,000 tanda suka dan banyak pengikut keesokan harinya.