Attention parents: Justin Bieber is now available to perform at sweet 16 parties. While we’re sure the pop star’s recent appearance at a Sweet 16 birthday of Toronto resident @EricaSchnaider was a one-time deal (which also came with a hefty price tag), the teen was starstruck when Justin took stage at her AGO celebration. The pop star posed for photographs and wished Erica a happy birthday, performing a song directly to her and even slow-dancing! Tweeted Erica, “But like…did tonight actually happen…or…?” Our thoughts exactly.