By the time Quavo hits the second half of his opening verse on "Avalanche," all three members of Migos are vibrating with energy, falling out of their seats to ride the beat. Juvenile delight fills the air, and it feels like a competition of who can vibe the hardest. Migos performs the remainder of their Tiny Desk (home) concert — "Straightenin" and "Birthday" — with Offset leaping around the trendy streetwear spot Gallery Dept., Quavo bouncing on armchairs and Takeoff working the shoulder.