From the episode "Lucy's Last Birthday," Ricky sings the often unknown lyrics to the "I Love Lucy" intro theme.

Lyrics:

I love Lucy and she loves me
We're as happy as two can be
Sometimes we quarrel but then
How we love making up again

Lucy kisses like no one can
She's my missus and I'm her man
And life is heaven you see
'Cause I love Lucy
Yes, I love Lucy
And Lucy loves me