Question: Dewaar, is the seventh studio album and the thirteenth overall album of the Pakistani band, Junoon released in 2003, this was the last studio album released by the band after which both bassist, Brian O'Connell, and which vocalist, a Pakistani singer-songwriter, musician and actor?
Context: Junoon for Peace is the first live album and the eleventh overall album by the Pakistani band, Junoon.  The album was recorded live on October 27, 2001. Junoon 20 is the fourth compilation album and the nineteenth overall album of the Pakistani band Junoon.  The compilation album served as a tribute album for the 20th anniversary of the band and is divided into two volumes.  The first edition of the album featured many well known musicians like Bilal Khan, Outlandish, Aag, Usman Riaz and Laal’s Taimur Rahman, paying tribute to Junoon by covering some of the band's famous songs.  The first volume of the album was released on September 30, 2011, and was made digitally available on October 5, 2011. Talaash (Urdu: تلاش, literal English translation: "search") is the second studio album of the Pakistani sufi rock band Junoon, released on September 3, 1993.  The album was to be their first with bassist Brian O'Connell, who joined the band after Nusrat Hussain departed from the band to pursue his career as a solo artist and released his debut album "Amrit" in 1992.  This was also the first Junoon album produced by Salman Ahmad and O'Connell, both also went on releasing several other albums by Junoon before O'Connell left the band after "Dewaar" in 2003.  The album also served as a soundtrack for the Pakistani television show "Talaash", which featured the band and its novel storyline was based on the band. Rock & Roll Jihad is the first soundtrack album and the eighteenth overall album of the Pakistani band, Junoon.  The soundtrack is based on Salman Ahmad and Junoon's musical journey.  The album features five new studio recordings along with five live tracks from "The concert for Pakistan" and the album was officially released on June 1, 2010 under the record label Nameless Sufi Music on all major online stores.  Salman Ahmad, lead guitarist & vocalist, also published a book named, "", regarding his time with Junoon and all the struggle he faced to become a rockstar. Inquilaab (Urdu: انقلاب, literal English translation: "revolution") is the third studio album and the fourth overall album of the Pakistani band Junoon.  Although previous albums by Junoon also achieved considerable success, 'Inquilaab' contained the band's first major hit, the patriotic song "Jazba-e-Junoon".  The album also contained the hit "Saeein," which marked Junoon's foray into what later became the sufi rock sound that Junoon is most popularly associated with.  Other hits from the album were "Mera Mahi" and "Husan Walo". Dewaar (Urdu: دیوار, literal English translation: "wall") is the seventh studio album and the thirteenth overall album of the Pakistani band, Junoon released in 2003.  This was the last studio album released by the band after which both vocalist, Ali Azmat and bassist, Brian O'Connell, left the band. Ali Azmat (born April 20, 1970) is a Pakistani singer-songwriter, musician and actor.  He is best known as the lead singer for the influential Sufi Rock band Junoon and for his subsequent solo career.  In 2001, he became the first musician ever to perform at the United Nations General Assembly along with an Indian band choosing to sing his song "Dosti" (English: "Friendship"), an aptly chosen title to promote the UN's mission in bringing peace to the world. Dewaar: The Best of Junoon is the third compilation album and the fourteenth overall album released by Pakistani rock band, Junoon.  The album is produced by the band vocalist and lead guitarist, Salman Ahmad. United For Peace is the second video album and the tenth overall album by the Pakistani band, Junoon.  The album contains four music videos from Junoon's previous albums, which include "Azadi", theme from "Jinnah the Movie", "Bulleya" from Parvaaz, "Jazba-e-Junoon"from Inquilaab, and "Zamane Ke Andaz" from Andaz. Millennium 1990-2000 is the second compilation album and the seventh overall album released by Pakistani rock band, Junoon.  It was released in 2000.  The album features some best songs of band.  It also includes two live versions of "Allah Hu", "Lal Meri Pat".  It includes emotive song "Azadi" from the movie based on the life of Quaid-e-Azam Mohammad Ali Jinnah, the founder of Pakistan.  The song is a tribute to Jinnah and his work towards the creation of Pakistan.  "Azadi" is followed by Neend Ati Nhin one of Junoon's early hits.  It also features sufi songs such as Ghoom which has emotve guitar solo and emotive vocals.  It has Junoon's patriotic song Jazba-e-Junoon which was released as single for the 1996 Cricket World Cup.  Released in 2000 album was received well in Pakistan.
Answer: Ali Azmat