After leaving Hollywood, Horne established herself as one of the premiere nightclub performers of the post-war era. She headlined at clubs and hotels throughout the U.S., Canada, and Europe, including the Sands Hotel in Las Vegas, the Cocoanut Grove in Los Angeles, and the Waldorf-Astoria in New York. In 1957, a live album entitled, Lena Horne at the Waldorf-Astoria, became the biggest selling record by a female artist in the history of the
RCA-Victor label. In 1958, Horne was nominated for a Tony Award for "Best Actress in a Musical" for her part in the calypso musical 'Jamaica'.
From the late 1950s through the 1960s, Horne was a staple of TV variety shows, appearing multiple times on Perry Como's Kraft Music Hall, The Ed Sullivan Show, The Dean Martin Show, and The Bell Telephone Hour. Other programs she appeared on included The Judy Garland Show, The Hollywood Palace, and The Andy Williams Show. Besides two television specials for the BBC (later syndicated in the U.S.), Horne starred in her own U.S. television special in 1969, Monsanto Night Presents Lena Horne. During this decade, the artist Pete Hawley painted her portrait for RCA Victor, capturing the mood of her performance style.
In 1970, she co-starred with Harry Belafonte in the hour long Harry & Lena for ABC; in 1973, she co-starred with Tony Bennett in Tony and Lena. Horne and Bennett subsequently toured the U.S. and U.K. in a show together. A very memorable appearance was in the 1976 program America Salutes Richard Rodgers, where she sang a lengthy medley of Rodgers songs with Peggy Lee and Vic Damone. Horne also made several appearances on The Flip Wilson Show.
Horne was long involved with the Civil Rights movement. In 1941, she sang at Cafe Society and worked with Paul Robeson. During World War II, when entertaining the troops for the USO, she refused to perform "for segregated audiences or for groups in which German POWs were seated in front of African American servicemen", according to her Kennedy Center biography. Since the US Army refused to allow integrated audiences, she wound up putting on a show for a mixed audience of black US soldiers and white German POWs. She was at an NAACP rally with Medgar Evers in Jackson, Mississippi, the weekend before Evers was assassinated. She also met President John F. Kennedy at the White House two days before he was assassinated. She was at the March on Washington and spoke and performed on behalf of the NAACP, SNCC, and the National Council of Negro Women. She also worked with Eleanor Roosevelt to pass anti-lynching laws. She was a member of Delta Sigma Theta Sorority.
Source