Give a stream of consciousness and then the final answer. "Rainy Days and Mondays" is a 1971 song by The Carpenters, with instrumental backing by L.A. session musicians from the Wrecking Crew, that went to number 2 on the Billboard Hot 100 chart and it was the duo's fourth number 1 song on the Adult Contemporary singles chart. However, the song failed to chart in the United Kingdom until it went to number 63 in a reissue there in 1993. "Rainy Days and Mondays" was certified Gold by the RIAA.

Answer this question: who sang rainy days and mondays always get me down?
The relevant information is: "Rainy Days and Mondays" is a 1971 song by The Carpenters, with instrumental backing by L.A. session musicians from the Wrecking Crew, that went to number 2 on the Billboard Hot 100 chart and it was the duo's fourth number 1 song on the Adult Contemporary singles chart.
So, the final answer is The Carpenters.