What a surprise!

Chelsea Clinton popped into the Friday evening performance of Jinkx Monsoon Sings Everything!, an unscripted show at the Laurie Beechman Theatre here in NYC in which the RDR queen literally asks her audience for showtune requests.

Keep reading for the priceless pic ...

Tonight, Jinkx sang tunes from Les Miz, Chicago, Sweeney Todd, Funny Girl, Evita and Hedwig and the Angry inch, not to mention pop tunes from Radiohead and Jefferson Airplane.

Chelsea did not make a request, but she did pose for a cute pic with Jinkx and a pal.

Jinkx plays one more show in NYC, then on to Philly Sunday (TIX!) and London in the fall. (Maybe Prince Harry will show up?)