Here are the facts as I remember them: I think it was a Mother's Day episode. Lawrence introduced one of the band members, I think it was the trumpet player and then introduced this musician's lovely wife who joined him on stage. She had blond hair and a beautiful voice. He played his horn right in her ear. The song she sang was well known, something Ella Fitzgerald might've sang.
Does anyone know the song? Which episode? What was her name? Where I can watch it?