Question: "Caribbean Blue" is a song by which Irish musician, singer, songwriter, and producer, and began their music career when she joined her family's Celtic band Clannad in 1980?
Context: Pól Brennan (Irish: "Pól Ó Braonáin" , ] ; born 22 April 1956) is an Irish singer, songwriter and producer.  He is the brother of Enya, Moya Brennan and Brídín Brennan.  He is a member of the family band Clannad, and co-wrote the hit song "Theme from Harry's Game".  He left the group in 1990, but rejoined in 2011.  Since the early 1990s, Pól has gained critical acclaim as a solo artist when he joined Japanese musician Joji Hirota and Chinese musician Guo Yue, and released an album, "Trísan". Patrick Murphy (born 20 October 1970) is an Irish musician, best known as the lead vocalist of the Celtic band Gaelic Storm. The Merry Sisters of Fate is an album by Irish Celtic band Lúnasa that was released in 2001 on Green Linnet Records.  It is the band's third major release, and first with pipe player Cillian Vallely.  The record is characterised as particularly rhythm-heavy and showcasing the band experimenting more with rhythm and sound than on previous records, and features numerous instruments atypical to Celtic music, such as lap steel guitar, piano, harmonium and clarinet, played by a number of guest musicians.  Rhythm, melody and strings vary as the foreground of the music, which largely consists of Irish tunes. Gaelic Storm is a Celtic band.  Their musical output includes pieces from traditional Irish music, Scottish music, and original tunes in both the Celtic and Celtic rock genres.  Their most recent album, "Go Climb A Tree" was released on July 28, 2017. "When The Stars Go Blue" is a popular alternative country song composed and originally performed by solo artist and former Whiskeytown band member Ryan Adams.  It was first released with his album "Gold" on September 25, 2001.  The song has been covered by many artists, notably: Celtic band The Corrs featuring U2's lead singer Bono, country music singer Tim McGraw and Norwegian artists Venke Knutson and Kurt Nilsen as a duo.  The song has also been performed live many times by Phil Lesh and Friends. Poitín ( ; ] ) is a Celtic band from the Czech Republic.  Founded in 1996, they have been active since 1997 and their music includes traditional Irish music, Scottish music, English folk songs and original compositions in the Celtic genre.  Their most recent album is "Simple Pleasures", released September 2016, preceded by "Wish" which was released in March 2014.  The 2010 CD "Bofiguifluki", was the first recording by a Czech band to be voted Celtic Album of the year 2010 by Celtic Radio.Net.  They were one of the first Celtic music groups to form in the Czech Republic after the Velvet Revolution and have had a significant influence on the development of the Celtic musical scene in that country. Connie Dover is an American singer-songwriter who primarily writes and performs Celtic music and American folk music.  Born in Arkansas and raised in Kansas City, Missouri, she started her career playing bluegrass before joining Celtic band Scartaglen in the early 1980s.  In the 1990s, she began a solo career and has released four solo albums since 1991's "Somebody", all on the Taylor Park Music label, with noted Scottish musician Phil Cunningham of Silly Wizard serving as producer.  She completed recording a CD of traditional Christmas songs and carols with the Kansas City Chamber Orchestra, entitled "The Holly and the Ivy", which was released in 2008. "Caribbean Blue" is a song by Irish musician Enya originally released as the second track on her 1991 album "Shepherd Moons". Moya Brennan, born Máire Ní Bhraonáin (] ), also known as Máire Brennan (born 4 August 1952), is an Irish folk singer, songwriter, harpist, and philanthropist.  She is the older sister of Enya and Brídín Brennan.  She began performing professionally in 1970 when her family formed the band Clannad, and is considered as the "First Lady of Celtic Music".  Moya released her first solo album in 1992 called "Máire", a successful venture.  She has been nominated for two Grammys and has won an Emmy Award.  She has recorded music for several soundtracks, including "Titanic", "To End All Wars" and "King Arthur". Eithne Pádraigín Ní Bhraonáin (anglicised as Enya Patricia Brennan; born 17 May 1961), better known professionally as Enya, is an Irish singer, songwriter, musician, and producer.  Born into a musical family and raised in the Irish speaking area of Gweedore in County Donegal, Enya began her music career when she joined her family's Celtic band Clannad in 1980 on keyboards and backing vocals.  She left in 1982 with their manager and producer Nicky Ryan to pursue a solo career, with Ryan's wife Roma Ryan as her lyricist.  Enya developed her distinct sound over the following four years with multi-tracked vocals and keyboards with elements of new age, Celtic, classical, church, and folk music.  She has sung in ten languages.
Answer: Enya