Bette Davis and vocalist Debbie Burton recorded and released a novelty song called "What Ever Happened to Baby Jane?" in 1962 with "I've Written a Letter to Daddy" (sung by Burton alone) on the B side. Both tunes were written by Frank De Vol. Davis performed the song on The Andy Williams Show on December 20, 1962.

Bette Davis included her own recording of the song "I've Written a Letter to Daddy" on her 1976 music album Miss Bette Davis Sings!.

In 1996 MTV ran a short parody of What Ever Happened to Baby Jane? in which an elderly Madonna in a wheelchair is at the mercy of a deranged Courtney Love (both singers were played by actors).

The British comedy team of Dawn French and Jennifer Saunders did a parody of Baby Jane for their television show French and Saunders in 1990.

A television movie remake of What Ever Happened to Baby Jane? aired in 1991 starring real-life sisters Lynn and Vanessa Redgrave.

Female impersonator Craig Russell did a parody of What Ever Happened to Baby Jane? in the 1977 film Outrageous! portraying both Davis and Crawford in one of the movie's more famous scenes.

In the 1979 film The Rose starring Bette Midler, a drag performer appears in a scene dressed as Bette Davis in Baby Jane and sings "I've Written a Letter to Daddy."

In the Seinfeld episode titled The Airport, George (Jason Alexander) makes a reference to one of Bette Davis' famous lines in Baby Jane. In the episode George picks up the last Time magazine in an airport newsstand before an escorted criminal in shackles can get it. When the criminal gets upset and says he could have had the magazine if only he weren't in the shackles, George replies, "But you are, Blanche! You are in the shackles!"

In 1991 the band Shakespears Sister released a video for their song "Goodbye Cruel World" which parodied Baby Jane along with another famous dark tale of Hollywood, Sunset Boulevard (1950).

A 2007 re-mix of the Baby Jane song "I've Written a Letter to Daddy" became a popular club favorite.

by Andrea Passafiume