Meet Hollywood's New A-List Teen Group

A 'Mad Men' star, a 'Hunger Games' actress and a singer walk into a diner...

— -- Talk about teen queens!

A TV star had breakfast with a Grammy winner and an actress from a huge film franchise -- and all of them are under the age of 20.

Lorde: I Look Like Gollum When I Perform

Kiernan Shipka, who plays Sally Draper on "Mad Men," posted a photo this past Sunday to Instagram of herself having breakfast with singer Lorde, 17, and "Hunger Games" actress Amandla Stenberg, 15.

Afterward, Lorde was photographed introducing Shipka to another young celeb: Taylor Swift. (Then, the two singers were photographed shopping together.