Who's There: Kelsea Ballerini & Garrett Clayton?

Whether you watched Hairspray Live! on NBC last night, or skipped it and did something productive for once in your life, today's episode of Who's There? is for you. Let's talk Grammys ("Best New Artist," anyone?), the Whos & Thems of Saturday Night Live and figure out what the heck the Love Magazine Advent Calendar is once and for all.