Problem: "Free as a Bird" is a song originally composed and recorded in 1977 as a home demo by John Lennon. In 1995, a studio version of the recording, incorporating contributions from Paul McCartney, George Harrison and Ringo Starr, was released as a single by the Beatles. It was released 25 years after the break-up of the band and 15 years after the death of Lennon. The single was released as part of the promotion for The Beatles Anthology video documentary and the band's Anthology 1 compilation album.

George Martin, who had produced most of the Beatles' 1960s recordings, turned down an invitation to produce "Free as a Bird" due to hearing problems (though he subsequently managed to produce and direct the Anthology series). Harrison, in turn, suggested Lynne as producer (co-producer of his 1987 album, Cloud Nine) and work commenced at McCartney's studio in February 1994. Geoff Emerick and Jon Jacobs were chosen to engineer the new tracks. The original 1977 tape of Lennon singing the song was recorded on a mono cassette, with vocals and piano on the same track. They were impossible to separate, so Lynne had to produce the track with voice and piano together, but commented that it was good for the integrity of the project, as Lennon was not only singing occasional lines, but also playing on the song. Although Lennon had died in 1980, Starr said that the three remaining Beatles agreed they would pretend that Lennon had "gone for lunch", or had gone for a "cup of tea". The remaining Beatles recorded a track around Lennon's basic song idea, but which had gaps they had to fill in musically. Some chords were changed, and the arrangement was expanded to include breaks for McCartney and Harrison to sing extra lines. Harrison played slide guitar in the solo. The Beatles' overdubs and production were recorded between February and March 1994 in Sussex, England, at McCartney's home studio. It ends with a slight coda including a strummed ukulele by Harrison (an instrument he was known to have played often) and the voice of John Lennon played backwards. The message, when played in reverse, is "Turned out nice again", which was the catchphrase of George Formby. The final result sounds like "made by John Lennon", which, according to McCartney, was unintentional and was only discovered after the surviving Beatles reviewed the final mix. When Starr heard McCartney and Harrison singing the harmonies, and later the finished song, he said that it sounded just like them [the Beatles]. He explained his comment by saying that he looked at the project as "an outsider". Lynne fully expected the finished track to sound like the Beatles, as that was his premise for the project, but Harrison added: "It's gonna sound like them if it is them... It sounds like them now." McCartney, Harrison and Starr all agreed that the recording process was more pleasurable than when they later recorded "Real Love" (the second song chosen for release); as it was almost finished, they had very little input, and felt like sidemen for Lennon.

What were their roles in the song?

Answer with quotes: chosen to engineer the new tracks.

Question:
Robin Charles Thicke (born March 10, 1977) is an American singer, songwriter and record producer. Thicke has worked with numerous artists, such as Christina Aguilera,3t, T.I., Nicki Minaj, K. Michelle, Pharrell Williams, Usher, Jennifer Hudson, Flo Rida, Brandy, Kid Cudi and Mary J. Blige, among others. Thicke worked on albums such as Usher's Confessions and Lil Wayne's Tha Carter III, while releasing his own R&B singles in the US including "Lost Without U", "Magic", and "Sex Therapy". He rose to international fame in 2013 with his single "Blurred Lines", which reached number one on the US Billboard Hot 100.
At the age of 22, after an involvement with Tommy Mottola and Epic Records following the end of his first deal with Interscope, Thicke resolved himself to work chiefly on material for his debut album, initially titled Cherry Blue Skies, planning to use his own money to fund the project. As Thicke told Billboard, "I decided I was going to save money to make my album, and I hoped to offer it to labels-take it or leave it-so I didn't have to negotiate how to make my music." While piecing his album together, Thicke began working with veteran producer and label executive Andre Harrell and, under his guidance, eventually signed with Interscope for a second time as part of Harrell's and Kenneth "Babyface" Edmonds' Nu America imprint label in 2001. In 2002, Thicke released his debut single "When I Get You Alone". The track samples Walter Murphy's "A Fifth of Beethoven", which itself is a disco rendition of Beethoven's Fifth Symphony. The music video for the song received some rotation on MTV2 and BET's Rated Next and was spun moderately on pop and urban radio, peaking at number forty-nine on Radio & Records Pop chart. Globally, however, "When I Get You Alone" became a chart success when it peaked in the Top 20 in Australia, Belgium, and Italy, and reached the Top 10 of the singles charts in New Zealand and the Top 3 in the Netherlands. The moderate success was enough to signal the release of the album in 2003 with its name changed to A Beautiful World. Despite the release of a second single, "Brand New Jones", the album received very little promotion and debuted at number 152 on the Billboard 200 albums chart, selling 119,000 copies as of January, 2012. A Beautiful World fell below the label's commercial expectations. The album's under-performance troubled Thicke personally, but it proved enough to make him a wanted collaborator. Thicke has cited Mary J. Blige, Usher, and Lil' Wayne, among others, as those who subsequently reached out to him. Reflecting on A Beautiful World in 2013, Usher stated to The New York Times, "I was blown away -- I thought Beatles, Earth Wind & Fire, Shuggie Otis, Marvin Gaye -- all in one album. [Robin's] got a soul you can't buy, man." Runner-up Blake Lewis performed "When I Get You Alone" during the 2007 season of American Idol when the Top 3 chose a song to sing. Lewis has often put Robin Thicke in his list of musical influences in interviews and on the American Idol website. The song was also performed by Blaine Anderson (played by Darren Criss) on Glee during the Season 2 episode "Silly Love Songs".
Answer this question using a quote from the text above:

Under who

Answer:
Harrell's and Kenneth