Question: Giorgio Moroder produced a hit record for the American singer who gained prominence in what era of the 1970s?
Context: The discography of Giorgio Moroder includes thirteen studio albums and ten soundtracks, as well as numerous production credits.  When in Munich in the 1970s, he started his own record label called Oasis Records, which several years later became a subdivision of Casablanca Records.  He produced huge hits for Donna Summer during the late-1970s disco era, including "Bad Girls", "Last Dance", "Love to Love You Baby", "No More Tears (Enough Is Enough)", "Dim All the Lights", "MacArthur Park", "Hot Stuff", "On the Radio", and "I Feel Love", and is the founder of the former Musicland Studios in Munich, a recording studio used by many renowned artists including Electric Light Orchestra, Led Zeppelin, Queen and Elton John. "Good-Bye Bad Times" is a song by the British singer and composer Philip Oakey and producer Giorgio Moroder.  It was written by Oakey and Moroder and recorded for the album "Philip Oakey & Giorgio Moroder".  Released as a single in the UK in June 1985 as the follow-up to Oakey and Moroder's 1984 hit "Together In Electric Dreams"; it reached number 44 in the singles charts and remained in the charts for 5 weeks.  It was moderately successful in Australia, where it peaked at number 26. "Carry On" is a song written by recording artists Donna Summer and Giorgio Moroder.  The song was first released on Moroder's 1992 album "Forever Dancing".  The following year, the song closed Summer's two-disc set "The Donna Summer Anthology".  During the 1970s Moroder had co-written and co-produced a large number of Summer's disco hits, and this song marked the first time the two had worked together in more than a decade. "Be My Lover Now" is a song by the British singer and composer Philip Oakey and producer Giorgio Moroder.  It was written by Oakey and Moroder and recorded for the album "Philip Oakey & Giorgio Moroder".  It was released as a single in the UK in August 1985 where it reached number 74 in the singles charts and remained in the charts for 1 week.  It was the third and final single to be released from the brief Oakey/Moroder partnership which had started with the single "Together in Electric Dreams" (1984). LaDonna Adrian Gaines (December 31, 1948May 17, 2012), better known by her stage name Donna Summer, was an American singer, songwriter, and painter.  She gained prominence during the disco era of the late 1970s.  A five-time Grammy Award winner, Summer was the first artist to have three consecutive double albums reach No. 1 on the United States "Billboard" 200 chart and charted four number-one singles in the U.S. within a 12-month period.  Summer has reportedly sold over 140 million records worldwide, making her one of the world's best-selling artists of all time.  She also charted two number-one singles on the R&B charts in the U.S. and a number-one in the U.K. "Denver Dream" is a song by American singer Donna Summer, released in 1974.  This was her first collaboration with Giorgio Moroder and Pete Bellotte, a songwriting team that would stay together until 1981 and produce all of Summer's biggest disco hits.  At this time Summer was living in Munich, Germany and singing backup for groups such as Three Dog Night.  Through her job as a backup singer she met Moroder and before long he started using her as a lead vocalist.  This single also marked the first usage of Summer's stage name (she had previously been credited as Donna Gaines, but had anglicised her married name to Austrian actor Helmut Sommer).  It was released in The Netherlands, Belgium and France in 1974, but did not make any particular impact on the chart.  The B-side, "Something's in the Wind", would, in 1977, be re-worked into the single, "Back in Love Again", which would become a top-40 UK hit.  Both sides of this single now appear on the CD compilation "Giorgio Moroder - Vol.  2-On The Groove Train 1974-85" "Together in Electric Dreams" is a song by the British singer and composer Philip Oakey, and Italian composer and producer Giorgio Moroder.  It was written by Oakey and Moroder and recorded for the original soundtrack of the film "Electric Dreams" (1984).  It later formed part of the joint album "Philip Oakey & Giorgio Moroder", released in 1985.  Released as a single in the United Kingdom in September 1984, it proved a major commercial success, even eclipsing the original film it was intended to promote.  It reached No.3 in the UK Singles Chart, staying in the charts for 13 weeks. Philip Oakey & Giorgio Moroder is a collaborative album released in 1985 by Philip Oakey, lead singer of the electronic band The Human League, and seminal electro producer Giorgio Moroder (] ), whose early records had been a major influence on Oakey. That's Bubble Gum – That's Giorgio is the 1969 debut studio album by Italian musician Giorgio Moroder.  The album contains the song "Looky, Looky" which was the first hit for Moroder; it was released as a single under the mononymous name "Giorgio". "Radar Radio" is a single performed by Giorgio Moroder featuring Joe Pizzulo and written by Giorgio Moroder and Tom Whitlock.  It was featured in the film "Top Gun".  The song was released in 1986 as a B-side to the hit split single that featured Berlin's "Take My Breath Away" on the A-side (which won the Academy Award for Best Original Song as well as the Golden Globe Award for Best Original Song in 1987).  "Radar Radio" has not been included on any of the "Top Gun" soundtracks issued to date, making the vinyl single the only release.  The song has never been released on CD and cassette.
Answer: disco era