Katharine McPhee -- KISSING 'SMASH' DIRECTOR ... Both Married to Other People

Katharine McPhee -- KISSING 'SMASH' DIRECTOR ... Both Married to Other People

Katharine McPhee is dating her former "Smash" director Michael Morris, TMZ has learned ... and they're even making out in public -- problem is, THEY'RE BOTH MARRIED TO OTHER PEOPLE.  Morris is married to actress Mary McCormack (who played…

TMZ.com