Problem: Lemon Henry "Blind Lemon" Jefferson (September 24, 1893 - December 19, 1929) was an American blues and gospel singer, songwriter, and musician. He was one of the most popular blues singers of the 1920s and has been called the "Father of the Texas Blues". Jefferson's performances were distinctive because of his high-pitched voice and the originality of his guitar playing. His recordings sold well, but he was not a strong influence on younger blues singers of his generation, who could not imitate him as easily as they could other commercially successful artists.

Jefferson was born blind (or possibly partially blind), near Coutchman, Texas. He was the youngest of seven (or possibly eight) children born to Alex and Clarissa Jefferson, who were sharecroppers. Disputes regarding the date of his birth derive from contradictory census records and draft registration records. By 1900, the family was farming southeast of Streetman, Texas, and his birth date is indicated as September 1893 in the 1900 census. The 1910 census, taken in May, before his birthday, further confirms his year of birth as 1893 and indicated that the family was farming northwest of Wortham, near his birthplace. In his 1917 draft registration, Jefferson gave his birth date as October 26, 1894, further stating that he then lived in Dallas, Texas, and had been blind since birth. In the 1920 census, he is recorded as having returned to Freestone County and was living with his half-brother, Kit Banks, on a farm between Wortham and Streetman. Jefferson began playing the guitar in his early teens and soon after he began performing at picnics and parties. He became a street musician, playing in East Texas towns in front of barbershops and on street corners. According to his cousin Alec Jefferson, quoted in the notes for Blind Lemon Jefferson, Classic Sides: They were rough. Men were hustling women and selling bootleg and Lemon was singing for them all night... he'd start singing about eight and go on until four in the morning... mostly it would be just him sitting there and playing and singing all night. In the early 1910s, Jefferson began traveling frequently to Dallas, where he met and played with the blues musician Lead Belly. Jefferson was one of the earliest and most prominent figures in the blues movement developing in the Deep Ellum section of Dallas. It is likely that he moved to Deep Ellum on a more permanent basis by 1917, where he met Aaron Thibeaux Walker, also known as T-Bone Walker. Jefferson taught Walker the basics of playing blues guitar in exchange for Walker's occasional services as a guide. By the early 1920s, Jefferson was earning enough money for his musical performances to support a wife and, possibly, a child. However, firm evidence of his marriage and children has not been found.

What did he do in his life that was significant before he started his music career?

Answer with quotes: Jefferson began playing the guitar in his early teens and soon after he began performing at picnics and parties.

Problem: Michael Stock (born 3 December 1951) is an English songwriter, record producer and musician, best known for being a member of the songwriting and production team Stock Aitken and Waterman that achieved success in the 1980s and 1990s. He has written or produced numerous worldwide hits including 18 No. 1 records in America and the UK, and over a hundred top-40 hits. Stock is one of the most successful songwriters of all time as recognised by the Guinness Book of Records. As part of Stock Aitken and Waterman, he is acknowledged as the most successful producer-songwriter in British chart history and holds the record for the most No. 1 records with different acts, with 11.

In 1993 Stock formed 'Love This Records', and built a brand new multimillion-pound recording studio in London. The first record released with 'Love This Records' was a dance cover of the track Total Eclipse of the Heart. It was a worldwide hit for Nicki French, reaching No. 2 in America and No. 1 in seven countries selling over 2 million copies. In 1994 Simon Cowell asked Stock to produce the record for the popular kid's TV show 'Mighty Morphin Power Rangers' which was a top 5 hit in the UK. Cowell had worked with Stock on previous occasions with artists such as Sinitta, for whom Stock wrote and produced various hits like Toy Boy in 1987. Stock again collaborated with Cowell in 1993 on the World Wrestling Federation (WWF) album Wrestlemania which spawned the No. 4 hit 'Slam Jam'. In 1994 Stock produced several artists for Simon Cowell including Kym Mazelle, Jocelyn Brown and Robson and Jerome. Their cover of Unchained Melody produced by Stock and Aitken became the highest selling non-charity single of the decade, remaining at No. 1 for 7 weeks in 1995 selling 2.5 million copies. Stock produced a further two No. 1 singles with Robson and Jerome and two No. 1 albums. After several years producing hits for Stock's own label 'Love This Records' and with Simon Cowell for BMG/RCA, the structural integrity of Stock's studio became compromised by the tunnelling of the Jubilee Line extension, and the damage forced Stock to pursue legal action against London Underground. As a result, Stock was forced to pull out of a joint deal with Cowell and BMG to produce several artists including the band Westlife in 1996. In 1998 Stock and Aitken teamed up with Steve Crosby who had created the group Steps, to form the band Scooch. Their first single 'When My Baby' reached No. 29 and their follow up, 'More Than I Needed To Know', was a top 5 hit in the UK in 2000 and went to No. 1 in Japan. Scooch's album 'Four Sure' spawned two more top 20 singles. Stock also scored a top 20 with 'Airhead' by girl band Girls@Play, with EastEnders' star Rita Simons that toured with Steps. In 2003 Stock formed the label Better the Devil Records and had a huge hit with the Fast Food Song selling 200,000 CD singles. Stock wrote and produced two further singles for the Fast Food Rockers including the top 10 'Smile Please'.

What are some other artists that he worked with?

Answer with quotes:
In 1994 Stock produced several artists for Simon Cowell including Kym Mazelle, Jocelyn Brown and Robson and Jerome.