Background: Ratt is an American heavy metal band that had significant commercial success in the 1980s, with their albums having been certified as gold, platinum, and multi-platinum by the RIAA. The group is perhaps best known for hit singles such as "Round and Round" and "Lay It Down", tracks that ranked on Billboard's top 40 at No. 12 and No. 40, respectively, as well as other songs such as "Wanted Man", "You're in Love" and "Dance".
Context: The origins of Ratt go as far back as 1973 in Hollywood, with a band called Firedome, founded by singer Stephen Pearcy with a few friends. In 1974 the band broke up, with Pearcy forming Crystal Pystal. The name Crystal Pystal was later changed to Buster Cherry, which turned into Mickey Ratt in 1976. Guitarist Robbin Crosby in those same years had been a member of the bands Metropolis with Tommy Asakawa and Parramore McCarty, Xcalibur, Phenomenon, Secret Service and Mac Meda with Askawa. Mickey Ratt went through various line-up changes. Members included guitarists Jake E. Lee, Chris Hager, Paul DeNisco, and Bob DeLellis, bassists Matt Thorr, Tim Garcia, Mike New and Dave Jellison, and drummers John Turner, and Bob Eisenberg. The various Mickey Ratt line-ups released several demos compilations and a live concert recording. In 1980, to increase their chances of landing a recording contract with a major label, the band recorded a single called "Dr. Rock" / "Drivin' on E", which was given to fans at their early Los Angeles club shows. In 1981, the band's name was shortened to Ratt. Crosby played with the band later in the year. Guitarist Warren DeMartini, recommended by Lee, joined the band in January 1982. Bassist Gene Hunter (from Jake E. Lee's Teaser) and drummer Khurt Maier (who played drums on the early "Tell the World" recording featured on the compilation Metal Massacre I) temporarily played in Ratt before the arrival of Bobby Blotzer (ex-Vic Vergeat) and Juan Croucier (previously with Dokken, and musically active since 1973). DeMartini was only 18 years old when he was called up to Los Angeles to join Ratt. At the time he was attending college in San Diego and was reluctant to drop out to join a band that had, so far, had only limited success. Marq Torien briefly replaced DeMartini, though he returned in time for the recording of their first EP, later in 1982.
Question: What songs did Ratt make in the early years?
Answer: Dr. Rock" / "Drivin' on E

Background: Lillian Evelyn Moller Gilbreth (May 24, 1878 - January 2, 1972) was an American psychologist, industrial engineer, consultant, and educator who was an early pioneer in applying psychology to time-and-motion studies. She was described in the 1940s as "a genius in the art of living." Gilbreth, one of the first female engineers to earn a Ph.D., is considered to be the first industrial/organizational psychologist.
Context: For more than forty years, Gilbreth's career combined psychology with the study of scientific management and engineering. She also included her perspectives as a wife and mother in her research, writing, and consulting work. Gilbreth became a pioneer in what is now known as Industrial and organizational psychology. She helped industrial engineers recognized the importance of the psychological dimensions of work. In addition, she became the first American engineer ever to create a synthesis of psychology and scientific management. (Gilbreth introduced the concept of using psychology to study management at the Dartmouth College Conference on Scientific Management in 1911.) In addition to jointly running Gilbreth Incorporated, their business and engineering consulting firm, Lillian and Frank wrote numerous publications as sole authors, as well as co-authoring multiple books and more than fifty papers on a variety of scientific topics. However, in their joint publications Lillian was not always named as a co-author, possibly due to publishers' concerns about a female writer. Althhough her credentials included a doctorate in psychology, she is less frequently credited in their joing publications than her husband, who did not attend college. The Gilbreths were certain that the revolutionary ideas of Frederick Winslow Taylor would be neither easy to implement nor sufficient; their implementation would require hard work by engineers and psychologists to make them successful. The Gilbreths also believed that scientific management as formulated by Taylor fell short when it came to managing the human element on the shop floor. The Gilbreths helped formulate a constructive critique of Taylorism; this critique had the support of other successful managers.
Question: What other things did the Gilbreths do?
Answer: The Gilbreths helped formulate a constructive critique of Taylorism; this critique had the support of other successful managers.

Background: Expose is an American Latin freestyle vocal group. Primarily consisting of lead vocalists Jeanette Jurado, Ann Curless, and Gioia Bruno, the group achieved much of their success between 1984 and 1993, becoming the first group to have four top ten hits on the Billboard Hot 100 chart from its debut album, including the 1988 #1 hit "Seasons Change". In March 2015, Billboard magazine named the group the eighth most-successful girl group of all-time. The group was popular in dance clubs, mainstream Top 40 and adult contemporary charts in the United States.
Context: In March 1987, the new lineup of Expose released its debut album Exposure on Arista Records, led by the pop/dance hit "Come Go with Me" which reached #5 on the US Billboard Hot 100 chart. During the summer of 1987, a re-recorded version of "Point of No Return" was released, with Jurado now performing lead vocals, and it too topped out at #5 on the US Hot 100. While the initial distribution of Exposure to suppliers contained the original 1984 version of that song, subsequent pressings contained the new version. "Let Me Be the One", a mid-tempo R&B song with Bruno on lead vocal, became yet another hit reaching #7 on the US Hot 100 and also garnering significant R&B radio airplay. The group's highest charting hit occurred in February 1988 with the #1 US hit ballad "Seasons Change". Along with that came a Soul Train Award nomination for Best New Artist; television appearances on American Bandstand, Solid Gold, Showtime at the Apollo, and The Late Show Starring Joan Rivers; and the group was tapped to be the opening act for Lisa Lisa and Cult Jam during its national tour. Expose also performed backing vocals on Kashif's 1987 Arista/BMG Records album Love Changes, on the song "Who's Getting Serious?". During Expose's peak, the group endured legal issues behind the scenes. The members had a restrictive contract and there were reports in the media of backstage battles. According to Bruno, they were only paid $200 per show. Reportedly, the record label had to intervene to try to keep the peace between the members and their producers. Despite this intervention, the members filed a lawsuit and ultimately settled their legal case for a renegotiated contract.
Question: Were there any other hits?
Answer:
"Let Me Be the One", a mid-tempo R&B song with Bruno on lead vocal, became yet another hit reaching #7 on the US Hot 100