Christopher Frederick Andrews is an English-German singer-songwriter and producer, whose musical career started in the late 1950s. His biggest hits as a solo artist include "To Whom It Concerns", "Yesterday Man", and "Pretty Belinda". He had thirteen number one songs between five countries between 1965 and 1970.

"Yesterday Man" is a song written by Chris Andrews and was his first single as a solo singer, released in September 1965. It climbed to No. 3 in the UK Singles Chart, and No. 1 in Ireland, New Zealand, Germany and Austria. In England it sold 20,000 copies in its first day. After a visit to England in September 1965, Jerry Wexler made a deal for Atco Records to release the single in the United States. In the US, it reached No. 94 in 1966. The Cash Box trade paper reported in its 5 February 1966 issue that it had passed 300,000 sales in Germany alone, and later over 800,000 as a final tally in that country.