Question: Who sang the theme to "Moonlighting" and also songs by Chris Christian?
Context: Pure Air is the second release of the band Agua de Annique formed by the former The Gathering vocalist Anneke van Giersbergen.  It was released in 2009.  It contains tracks from their first album Air, and also songs featuring Anneke with other artists (Within Temptation, Anathema, Arjen A. Lucassen...). The White Songbook is the fifth studio album by Joy Electric, and the first in the band's ongoing Legacy series.  The album has a "book" theme, with the songs logically divided into "chapters," which are also songs.  These chapters are "The White Songbook," "Hunter Green and Other Histories," "As Children We Are Growing Younger," and "A Frog in the Pond."  The introductions to these chapters are relatively short instrumentals, with the exception of "The White Songbook," which is much longer and features spoken text. Cotton, Lloyd and Christian were an American and Australian soft rock trio comprising singer-songwriters Darryl Cotton, Michael Lloyd and Chris Christian, who achieved some success in the mid-1970s. Şehir is the first album by Turkish rock band Mor ve Ötesi.  The album is published on November 12, 1997 by the recording company Ada Müzik Yapım.  The album encouraged a lot of Turkish alternative rock bands in late 1990s.  There are also songs which are written in English.  From time to time, they are still writing English songs. Chris Christian (born February 7, 1955) is an American songwriter, record producer, and a record label executive.  His songs have been recorded by Elvis Presley, Olivia Newton-John, Hall and Oates, Natalie Cole, Sheena Easton, The Pointer Sisters, Al Jarreau, The Carpenters, Amy Grant, Patti Austin, Dionne Warwick, America, The Imperials, B.J. Thomas, B W Stevenson, Marilyn McCoo, Dan Peek, Cheryl Ladd, Jane Olivor, Sandi Patti, Pat Boone, Ali Lohan, Donnie Osmond, and others. All Things Are Possible is the 1979 debut solo album of contemporary Christian music by Dan Peek, released after his departure from the popular soft rock band America.  It was released by Pat Boone's label Lamb & Lion Records.  Chris Christian co-wrote, produced, and contributed acoustic guitar and backing vocals on the album. Laurie Geltman (born in Baltimore and raised in Boston), is an American rock singer-songwriter.  She studied at the Berklee College of Music as a film score major, and began performing in the early 1990s with the experimental rock group "Vasco da Gama".  She was a Boston Music Awards winner in 1998 for Outstanding Female Vocalist.  After that, she began her solo career.  She released her first album, "Departure", herself, then her second album, "No Power Steering" on her own label.  A year after its release, "No Power Steering" was re-released by Eastern Front Records.  She also released her third album "Motion Pictures", on her own label.  Her song "Ghost in the House" appeared on the "Respond I" compilation, a benefit CD for domestic violence groups, which includes also songs from Patty Larkin, Melissa Ferrick, Jenny Reynolds and Faith Soloway among others. Jonny Kearney & Lucy Farrell are a contemporary English folk duo.  Although they play some traditional songs, most of the songs they sing are their own compositions influenced by the folk tradition, but also songs by other artists such as Bob Dylan, Tom Waits, Cole Porter, Brian Wilson and The Beatles. Alwin Lopez "Al" Jarreau (March 12, 1940 – February 12, 2017) was an American singer and musician.  He received a total of seven Grammy Awards and was nominated for over a dozen more.  Jarreau is perhaps best known for his 1981 album "Breakin' Away".  He also sang the theme song of the late-1980s television series "Moonlighting", and was among the performers on the 1985 charity song "We Are the World." Moonlighting: the Television Soundtrack Album is the soundtrack to the ABC television series "Moonlighting" and was produced by Phil Ramone and Glenn Gordon Caron.  It features songs performed on the show by series leads Cybill Shepherd and Bruce Willis, alongside the series theme song performed by Al Jarreau.  That single peaked at number one on the Billboard Adult Contemporary chart on July 25, 1987.  Other songs include Chubby Checker's "Limbo Rock", The Isley Brothers's "This Old Heart of Mine (Is Weak for You)", and "When a Man Loves a Woman" by Percy Sledge.
Answer: Al Jarreau