Here's Lucy - Season 5 - Eps 11: Lucy and Donny Osmond
Lucy and Kim attend a Donny Osmond concert with cousin Patricia (Eve Plumb), who is crazy for the 14 year old singer. Donny, spots Kim in the audience, and he falls in love at first sight. Kim believes the flowers and letters are for Patricia, but soon discovers the mix-up. Realizing Donny volunteered to perform at Kim's Charity function because of the mix-up, Kim feels obligated to set the record straight.
About Here's Lucy

Title: Here's Lucy
First Air Date: 1968-09-23
Last Air Date: 1974-03-18
Status: Ended
Rating: 6.7/10 (from 28 votes)
Language: EN
Seasons: 6
Total Episodes: 144
Network: CBS
Genres: Comedy
Production Companies: Unknown
Cast

Lucille Ball
Lucy Carter

Gale Gordon
Harrison Carter