Earlier this year, the longtime smart-rock friends Aimee Mann and Ted Leo teamed up to form a duo called the Both and to release an underrated, deeply likable power-pop debut album. They performed their single “Milwaukee” on The Tonight Show last month, and last night, they stopped by Conan to play their excellent ballad “No Sir.” Leo wore a mock-turtleneck T-shirt, and Mann continued to remind the world that she must be some sort of wizard, since she looks maybe half of her 53 years. Watch the performance below.

The Both is out now on Mann’s SuperEgo label.

UPDATE: It was just a collared shirt. Not a mock turtle.

@stereogum @aimeemann Guys. It was just a collared shirt. Not a mock turtle.

— Theodore Leo (@tedleo) June 19, 2014