Jay Leno, center, with Alma and Colin Powell. (Photo by Stacey Vaeth.) Jay Leno, center, with Alma and Colin Powell. (Photo by Stacey Vaeth.)

Hey, isn’t that… Comedian Jay Leno, dropping by the Hay-Adams hotel  Saturday night to perform at a joint birthday party for local businessman and author Tom Blair and his wife, Alice.

The candle-blowing couple surprised the 100 or so guests, including former secretary of state Colin Powell and his wife, Alma, with a comedy routine by the former “Tonight Show” host during the swanky rooftop soiree.

We hear Leno turned a few heads in the lobby, and obliged a few fans by posing for pictures.

More Hey, isn’t that . . .  Had a sighting? Share it at reliablesource@washpost.com.