Title: I'm Gonna Sit Right Down and Write Myself a Letter
Content:  "I'm Gonna Sit Right Down and Write Myself a Letter" is a 1935 popular song with music by Fred E. Ahlert and lyrics by Joe Young. It has been recorded many times, and has become a standard of the Great American Songbook. It was popularized by Fats Waller, who recorded it in 1935 at the height of his fame. It is one of several songs from the Harlem Renaissance featured in the Broadway musical Ain't Misbehavin'. American Public Media's business-news program, Marketplace, uses a portion of Fats Waller's version to open its weekly letters-from-listeners segment.
Title: Sit Yourself Down
Content:  "Sit Yourself Down" is a song written by Stephen Stills that was released on his 1970 solo debut album Stephen Stills. It was also released as the second single from the album, following the Top 20 hit "Love the One You're With." and reached the Top 40, peaking at #37.
Title: I'm Gonna Sit Right Down and Write Myself a Letter
Content:  Vaughan, Ella Mae Morse, and The Mills Brothers. Don Cherry, best known for "Band of Gold", his 1955 mega hit, released a version of 'Letter' in 1957 on a Coronet 78 (an Australian label), working with Ray Conniff and his Orchestra. On the flip side was So Rare. Charlie Gracie (mostly known for his 1957 #1 hit "Butterfly" on Cameo Record label #105—45rpm) recorded "I'm Gonna Sit Right Down and Write Myself a Letter" (Cadillac Record label #141—45 rpm). The flip side of the record was a song written by Gracie, "Boogie Woogie Blues". Gracie's version was released in 1953. Bill Haley & His Comets recorded a rock and roll version of the song 
Title: I'm Gonna Sit Right Down and Write Myself a Letter
Content:  1957. Fabian recorded his version of the song in 1960 on Chancellor Records. In 1973 Cleo Laine included the song as her opening song on the album I Am a Song and sang on stage during her subsequent tour. Comedian Larry Storch recorded and released the song on Roulette records. New Jersey entertainer Uncle Floyd (aka Floyd Vivino) has covered this song in his live performances as well as recording it. Madeleine Peyroux also covered this song on her debut album Dreamland (1996). Tony Danza released a version in 2002. In 2012 Paul McCartney covered it on his album of standards, Kisses on the Bottom and chose one of its lines as the title.
Title: Sit Yourself Down
Content:  "Sit Yourself Down" has a gospel-based melody. It was inspired by Stills' new relationship with Rita Coolidge, who also provided backup vocals on the song. Five other backing vocalists were used on the bridge and refrain, including Graham Nash, David Crosby, John Sebastian and Cass Elliott. The refrain was propelled by Stills piano playing. The lyrics discuss aging, maturing and settling down. They capture Stills' conflict between wanting to push himself harder and wanting to find peace. According to author David Browne, the music, and particularly the way the lead guitar line plays off the melody, capture Stills conflict.
Title: Sit Down (song)
Content:  "Sit Down" is a song by English band James, originally released in June 1989 by Rough Trade Records. The song's lyrics were written in late 1988 as a homage to author Doris Lessing and singer Patti Smith, who had inspired the lead singer of James, Tim Booth. In its eight-and-a-half-minute original form, the song only reached number 77 on the UK Singles Chart (although it did make number eight in John Peel's Festive Fifty of that year). After experiencing success as part of the Madchester music scene, a new version was released in March 1991 that was shorter and with new lyrics. 
Title: I'm Gonna Sit Right Down and Cry (Over You)
Content:  "I'm Gonna Sit Right Down and Cry (Over You)" is a popular song written in 1953 by Joe Thomas and Howard Biggs and originally recorded by Roy Hamilton in 1954. Since then, it became something of a minor pop standard, largely due to several well-received versions of the song. It is best known for appearing on Elvis Presley's first album, and for a performance of the song by The Beatles (which appears on their Live at the BBC album). The Beatles also performed the song at the Star-Club in Hamburg on New Year's Eve, 31 December 1962, during their fifth and final Hamburg residency. This version appears on their album, Live! at the Star-Club in Hamburg, Germany; 1962.
Title: Sit Down, You're Rockin' the Boat
Content:  "Sit Down, You're Rockin' the Boat" is a song written by Frank Loesser and published in 1950. The song was introduced in the Broadway musical, Guys and Dolls, which opened at the 46th Street Theatre on November 24, 1950. In the context of the show, gambler Nicely-Nicely Johnson invents a dream about being saved from hell in order to bring together the members of the prayer meeting. It was performed on stage by Stubby Kaye who later reprised his role as Nicely-Nicely Johnson in the 1953 London production, as well as the 1955 film version of the play. The song is generally considered to be the 11 o'clock number in Guys and Dolls.
Title: Billy Williams (singer)
Content:  Wilfred Williams (December 28, 1910 &ndash; October 12, 1972) was an American singer. He had a successful cover recording of Fats Waller's "I'm Gonna Sit Right Down And Write Myself A Letter" in 1957. The record sold over one million copies, and was awarded a gold disc. His trademark hook for his songs was to shout "Oh, Yeah" at the end of lyrics.
Title: I'm Gonna Sit Right Down and Write Myself a Letter
Content:  The song had a major revival in 1957 in a Coral recording (on April 3) by Billy Williams with orchestra directed by Dick Jacobs. It reached #3 on the Billboard magazine charts. A reported million-seller, it was awarded a Gold record. The song was recorded by Frank Sinatra for his 1954 album Swing Easy, by Bing Crosby for his 1957 LP Bing with a Beat and again by Sinatra in 1962 for his collaborative album with Count Basie, Sinatra–Basie: An Historic Musical First. Among other versions are recordings by The Boswell Sisters, Connee Boswell, Nat "King" Cole, Scatman Crothers, Gregory Isaacs, Barry Manilow, Dean Martin, Anne Murray, Willie Nelson, Linda Scott, Shakin' Stevens, Al Bowlly, 

Question: who sang gonna sit right down and write myself a letter?
Answer: Fats Waller.