First Lady sings the blues, Al Sharpton covers ears

Where is a good Apollo clown when you need one?  That's what Rev. Al Sharpton wants to know:

The worst thing in the world is when an entertainer doesn't know when the show is over. The audience is gone, the lights are down, you're getting ready to cut the mics off and you are still on the stage singing. It's over, it's all right, it's over. Come sing another day, but this show is over, Sen. Clinton.

(Shout out: Politico)