Q: Passage: "(Sittin' On) The Dock of the Bay" is a song co-written by soul singer Otis Redding and guitarist Steve Cropper. It was recorded by Redding twice in 1967, including once just days before his death in a plane crash. The song was released on Stax Records' Volt label in 1968, becoming the first posthumous single to top the charts in the US. It reached number 3 on the UK Singles Chart.

Question: Based on this passage, who wrote sitting by the dock of the bay? Let's give stream of consciousness first:
The important part for answering this question is: "(Sittin' On) The Dock of the Bay" is a song co-written by soul singer Otis Redding and guitarist Steve Cropper. Therefore, the final answer is soul singer Otis Redding and guitarist Steve Cropper.