Who's The Special Clinton Guest Star At J-J?

It's not Sheryl Crow ... though that was Thursday's rumor...
It's not the Goo Goo Dolls ... though that was Friday's rumor...

So who's headlining Hillary Clinton's Jefferson Jackson rally?

It's Terry McAulliffe... the campaign chairman, not the fantastic-singer-you've-never-heard-of-who-just-happens-to-be-named-Terry-McAullife.