Question: Roddy Woomble and Kelli Ali, have which mutual occupation?
Context: Warnings/Promises is the fourth full-length studio album by the Scottish rock band, Idlewild, released on 7 March 2005, on Parlophone.  The album marks the only appearance of bassist Gavin Fox, following the departure of Bob Fairfoull in 2002, and is the first album to feature touring guitarist Allan Stewart as a permanent member.  During the recording of the album, Roddy Woomble described the process as feeling "so different, in every way, than any of our other records," and cited that Idlewild felt like a "new band". Aidan O'Rourke (born 1975) is a Scottish contemporary folk music fiddle player and composer.  He was named the 2014 BBC Radio 2 Folk Awards Musician of the Year and the Scots Trad Music Awards 2011 Composer of the Year.  In addition to his solo career, O'Rourke also plays in the award-winning folk trio Lau alongside Kris Drever and Martin Green.  He was one of 20 musicians commissioned for New Music 20x12 by PRS for Music Foundation to celebrate the 2012 Summer Olympic Games.  O'Rourke has worked with Eddi Reader, Andy Sheppard, Alyth, Roddy Woomble and appears on more than eighty recordings.  Previously, he was a member of Blazin' Fiddles, The Unusual Suspects and Tabache. Idlewild are a Scottish indie rock band that formed in Edinburgh in 1995.  The band's line-up consists of Roddy Woomble (lead vocals), Rod Jones (guitar, backing vocals), Colin Newton (drums), Andrew Mitchell (bass) and Luciano Rossi (keyboards).  To date, Idlewild have released seven full-length studio albums, with their latest, "Everything Ever Written", released in February 2015. Make Another World is the fifth full-length studio album by the Scottish rock band Idlewild, released on 5 March 2007 through Sequel Records.  The album is the first with bass guitarist Gareth Russell, following Gavin Fox's departure at the end of 2005, and is their first since leaving Parlophone.  Vocalist Roddy Woomble said that the band "made a conscious decision to make a strong, loud, rock record." The Remote Part is the third album by Scottish rock band Idlewild, released on 15 July 2002.  It received broadly positive reviews and is Idlewild's most commercially successful album to date, entering the UK album chart at Number 3 and selling 100,000 copies within a month.  It is currently certified as Gold within the U.K. Vocalist Roddy Woomble notes that the band felt like "a collective of songwriters" during the writing process.  Woomble credits guitarist Rod Jones with influencing the album's musical direction, stating that Jones "really started to take steps forward in terms of his guitar playing, and also his harmonies.  I think he pulled the record in a more poppy way, as that’s the sort of musician he is – he loves bands like Teenage Fanclub and Yes and ELO and The Police." My Secret is My Silence is the debut studio album by Idlewild lead vocalist Roddy Woomble, released 24 July 2006, on Pure Records. The Impossible Song & Other Songs is the third solo album by folk musician and Idlewild vocalist Roddy Woomble, released on 21 March 2011 on Greenvoe Records.  Regarding the album's overall aesthetic, Woomble states: "My first two solo albums were much more low-key than this one and they were far more rooted in traditional Scottish folk.  This record is a real change – it's more eclectic while still being part of that folk scene." Kelli Dayton, also known as Kelli Ali (a name she took to honour her father, Michael Ali) is a female vocalist most recognized for being lead singer for the trip hop group Sneaker Pimps. 100 Broken Windows is the second full-length studio album by Scottish band Idlewild, released on 9 May 2000.  The album showcased a significantly mellower, less distorted sound for Idlewild, with the songs being of a slower tempo than those on the punk influenced "Hope Is Important".  In 2008, vocalist Roddy Woomble stated that the album "seems to be the record many people make a connection with." Roderick "Roddy" Woomble (born 13 August 1976) is a Scottish singer, songwriter and writer.  He is best known as the lead vocalist of indie rock band Idlewild, with whom he has recorded seven studio albums.  In 2006, Woomble released his debut solo album, "My Secret is My Silence", and released two subsequent albums, "The Impossible Song & Other Songs" and "Listen to Keep", in 2011 and 2013, respectively.  He will release his fourth studio album "The Deluder" on 1st September 2017.
Answer: singer