What did Katharine McPhee's grandfather do on Ed Sullivan?

Question

I read on TV Guide Channel that he appeared, but what did he do? When did it air? Who else was on?

Answer 1

From tv.com -

Katharine has some good musical DNA. Her paternal grandfather, Roger Fee, sang on The Ed Sullivan Show and he was the University of Denver's music school dean.

Found this on Imdb -

TV Series: "Toast of the Town" (1948)
Original Air Date: 4 August 1957 (Season 10, Episode 45)
Episode Cast:
The All-American Chorus
Dan Dailey
The Everly Brothers
Roger D. Fee
Chiquita and Johnson
The Kirby Stone Four
Jay Lawrence
Marion Marlowe
Herb Score
Venetia Stevenson
Cesare Valletta