As they are performing, we see that they are being observed by the occupants of an alien spaceship (John Davidson and Suzanne Somers) who are on their way to Earth to meet The Carpenters.
At that moment, John teleports down to the studio and tells Richard and Karen how the people from his planet lack the ability to make music and he requests their help.
Back in the recording studio, Karen and John continue to reminisce about her early days in music and she performs "Little Girl Blue".
Afterwards, everybody teleports up to the spaceship's own nightclub, "The Galaxy Room", where Richard plays "Piano Picker", and Karen and Suzanne perform "Man Smart, Woman Smarter".
The Carpenters then perform "Calling Occupants of Interplanetary Craft" and the show ends with an instrumental version of "We've Only Just Begun".