Problem: Michael McDonald (born February 12, 1952) is an American singer, songwriter, keyboardist and record producer. McDonald's music career spans more than 45 years. His early career included singing with Steely Dan. He joined the Doobie Brothers in 1976 and remained an integral member until 1982, after which he released the first of nine solo albums.

McDonald was recruited by the rock band the Doobie Brothers in April 1975, initially as a temporary replacement for their lead vocalist Tom Johnston after he had become ill during a national tour, but his work with the band proved so successful that they decided to retain him as a full-time member.  As a member of the Doobie Brothers, McDonald sang the lead vocals on some of the band's best-known songs such as "Real Love", "Takin' It to the Streets", "Little Darling (I Need You)", "It Keeps You Runnin'", "Minute by Minute", and "What a Fool Believes" (which became a No. 1 single in the U.S. and earned him a 1980 Grammy Award for Song of the Year along with co-writer Kenny Loggins). At the same time, McDonald appeared as a session vocalist and keyboardist for various artists, including Christopher Cross, Stephen Bishop, Jack Jones, Bonnie Raitt, the rock band Toto and Kenny Loggins. McDonald co-wrote "You Belong to Me" with Carly Simon, which appeared on the album Livin' on the Fault Line.  McDonald reunited as a guest performer with the Doobie Brothers several times since the band's initial dissolution in 1982. He re-teamed with the Doobie Brothers for the track "Don't Say Goodbye" on the band's thirteenth studio album, World Gone Crazy. In March 2014, he reunited with the Doobie Brothers to record a brand-new album featuring the greatest hits of the Doobies' 40-plus-year career. This project was completed in conjunction with Sony Music Nashville. On the album, McDonald shares lead vocals with Sara Evans for "What a Fool Believes", Love and Theft for "Takin' it to the Streets", and Amanda Sudano-Ramirez for "You Belong to Me". The album, titled Southbound, was released on November 4, 2014, as the Doobie Brothers' fourteenth studio album.  On November 5, 2014, McDonald and the Doobie Brothers were featured musical guests on the 47th annual CMA Awards to celebrate the release of Southbound. They were joined by Hunter Hayes, Jennifer Nettles and Hillary Scott in their performance of "Listen to the Music." At the end of the awards ceremony, they were also joined by host Brad Paisley for "Takin' It to the Streets".

What did he sing for the Doobie Bros?

Answer with quotes: lead vocals on some of the band's best-known songs such as "Real Love", "Takin' It to the Streets", "Little Darling (I Need You)", "It Keeps You Runnin'", "

Background: Miguel Indurain Larraya (Spanish pronunciation: [mi'gel indu'rain la'raja]; born 16 July 1964) is a retired Spanish road racing cyclist. Indurain won five consecutive Tours de France from 1991 to 1995, the fourth, and last, to win five times.
Context: In 1984 he rode in the Olympic Games at Los Angeles and then turned professional on 4 September for Reynolds. He won his first professional race a week later, a time trial in the Tour de l'Avenir. In 1985 he started the Vuelta a Espana and came second in the prologue, behind Bert Oosterbosch. Oosterbosch lost time on the second stage and Indurain became leader, the youngest rider to do it. He rode the Tour de France later that year, as he would do in each of the next 11 years, but dropped out in the fourth stage.  In 1986, Indurain again rode the Tour, dropping out on the 12th stage. He started the 1987 Vuelta a Espana with bronchitis from the Tour of Belgium. He rode the 1988 Tour de France as teammate of the winner Pedro Delgado. In 1989, he escaped during the ninth stage of the Tour de France. He won the stage and became leader of the mountains classification, wearing the polkadot jersey the next stage, the only time in his career. In 1990, Indurain rode the Tour de France again for Delgado, but Delgado could not win. Indurain finished 10th place, sacrificing several places by waiting for Delgado.  Indurain was a strong time trialist, gaining on rivals and riding defensively in the climbing stages. Indurain won only two Tour stages that were not individual time trials: mountain stages to Cauterets (1989) and Luz Ardiden (1990) in the Pyrenees. During his five consecutive Tour de France wins he never won a stage that was not a time trial. These superior abilities in the discipline fit perfectly with the TT heavy Tours of the era, with many featuring between 150 and 200 km of time trialling vs the more common 50-80 km today.
Question: is there any other information i should know about any of his races?
Answer: In 1984 he rode in the Olympic Games at Los Angeles and then turned professional on 4 September for Reynolds.

Question:
Daryl Hall and John Oates, often referred to as Hall & Oates, are an American musical duo. Daryl Hall is generally the lead vocalist; John Oates primarily plays electric guitar and provides backing vocals. The two write most of the songs they perform, separately or in collaboration. They achieved their greatest fame from the late 1970s to the mid-1980s with a fusion of rock and roll and rhythm and blues.
Hall and Oates have almost always toured extensively for each album release. But in 1985, the duo took a break after the release of their Live at the Apollo album with David Ruffin and Eddie Kendricks--voices of The Temptations and two of their heroes. This was RCA's second attempt at a live Hall and Oates album, following the 1978 release Livetime. Live at the Apollo was released primarily to fulfill the duo's contract with RCA, and contained a top-20 hit with a medley of "The Way You Do the Things You Do" and "My Girl", both hits Ruffin and Kendrick had recorded with the Temptations in 1964.  Hall and Oates had collaborated on the USA for Africa "We Are the World" project, with the former as one of the soloists and the latter as a chorus member, and performed at the Live Aid concert in Philadelphia, with Ruffin and Kendrick. The Hall and Oates band also backed up Mick Jagger's performance at this show.  Hall, Oates, Ruffin and Kendrick performed again at the MTV Video Music Awards in New York later that year, complete with an Apollo Theater-style marquee descending on the stage during their performance.  In May, 1985, Hall and Oates performed at the Nashville Municipal Auditorium. Just prior to Live Aid, on July 4, they participated in Liberty Concert, an outdoor benefit concert at Liberty State Park in Jersey City, New Jersey for the restoration of the Statue of Liberty. It became a major music event, drawing an estimated crowd of over 60,000 people.  In 1986, Daryl Hall scored a Top 5 US hit with "Dreamtime", from the album "Three Hearts in the Happy Ending Machine". That album also included the Top 40 hit "Foolish Pride" and the Top 100 hit "Somebody Like You," later performed by the duo live on their "Behind the Music" set. Although John Oates did not have a solo hit as a singer, he did receive credit as co-songwriter (with Iva Davies) of the 1988 Icehouse top 10 US hit "Electric Blue." Oates also worked as producer, co-songwriter and co-lead vocalist of the single "Love Is Fire" by The Parachute Club, which was a top 40 hit in Canada in 1987.
Answer this question using a quote from the text above:

did they fulfill their contract with RCA?

Answer:
Live at the Apollo was released primarily to fulfill the duo's contract with RCA,