Liberace (May 16, 1919 – February 4, 1987) was an American pianist and performer who lived during the 20th century.
In 2287, Andrew Penalt was referred to as "Liberace Bernstein". (TOS novel: Probe)
In the Vic Fontaine holosuite program, the character of Ginger performed with Liberace. (DS9 episode: "His Way")