It kind of leaves you speechless. If you can make it all the way through the clip, you'll also see Ike Turner and the full Ike and Tina Revue with Tim Conway as a surrealistic Sgt Pepper's Band.
For some reason this clip always seems to surface around late April, possibly because it was first aired on the Cher variety show on April 27, 1975, making it almost exactly 33 years old.
Kate Smith who, to put it charitably, was already in the winter of her career by the late `60s, was a staple on television of the era, gamely putting in appearances on nearly every variety show in existence over the next decade, including but not limited to: Tony Orlando and Dawn; The Sonny and Cher Comedy Hour; The Smothers Brothers Comedy Hour; The Dean Martin Show; Rowan & Martin's Laugh-In; The Andy Williams Show and The Jackie Gleason Show. It was a happy show when Smith did not sing God Bless America, which producers tended to trot out to show how they were both hip and pro-American.
Thanks to Mark Evanier for the link.