The ad soliciting new songs Craig finds in the newspaper gives an address of 718 North Gower. In reality, this is the address of Paramount Studios (formerly Desilu) where the show was filmed.
Craig and Ann-Margret perform the song "Country Music" by Steve March, the son of Mel Torme and adopted son of Arnaz family friend, Hal March. Steve March also appeared onscreen in two episodes.
The pink paisley Fender telecaster guitar Craig plays during his number with Ann-Margret belonged to Jimmy Burton, Elvis Presley's number one guitar player. Burton actually played the guitar solo for Desi Arnaz Jr.
Lucy Carter wants Craig to be a doctor, not a musician. On "I Love Lucy", Lucy Ricardo wanted Little Ricky to be a doctor, not a musician.
When Ann-Margret changes into "something more comfortable" she comes out wearing the same blue chenille bathrobe that Lucy wore in "Lucy and Tennessee Ernie's Fun Farm". It is identical to the one that Vivian Vance wore in 1952's "Breaking the Lease" and other "I Love Lucy" episodes.