I honestly can't explain it. There’s something about SM that is different from other agencies when it comes to b-sides. They just have that little something that other agencies don’t have. They make everything so magic and ethereal.
Transformer by EXO…Butterfly by f(x)…Body Talk by Red Velvet…Symptoms by SHINee…Girlfriend by Girls' Generation…Are You a Good Girl by TVXQ!…Boom Boom by SuperJunior…just from the top of my head. You can’t deny SM really has talent when it comes to picking b-sides for their artists' albums. Pure greatness.