Its a Super Siren Sweet Sixteen! (Say that six times swiftly). Sonata is pretty sure that its her and her sister's Sweet Sixteen (Even though they're easily over a thousand years old). Still, she wants to celebrate their sixteenth year in Canterlot City, much to the other's dismay.

Part of the Coffee Trilogy, which also includes: Coffe Break and Pinkie and the Bear-Monkey.