Which singer/songwriter wrote the song "Mercedes Benz"?

"Mercedes Benz" is an 'a cappella' song written by singer Janis Joplin with the poet Michael McClure and Bob Neuwirth, and originally recorded by Joplin. In the song, the singer asks the Lord to prove His love for her by buying her a Mercedes-Benz automobile, a color TV, and a "night on the town." There is also a reference to "Dialing for Dollars", a franchised format local television program, which required one to be watching the show to win when the show called your phone number, hence the singer's need for a TV.

Janis Lyn Joplin (January 19, 1943 – October 4, 1970) was an American singer-songwriter who sang rock, soul and blues music. One of the most successful and widely known rock stars of her era, she was noted for her powerful mezzo-soprano vocals and "electric" stage presence.

In 1967, Joplin rose to fame following an appearance at Monterey Pop Festival, where she was the lead singer of the then little-known San Francisco psychedelic rock band Big Brother and the Holding Company. After releasing two albums with the band, she left Big Brother to continue as a solo artist with her own backing groups, first the Kozmic Blues Band and then the Full Tilt Boogie Band. She appeared at the Woodstock festival and the 'Festival Express' train tour.