a career as a solo singer, and Shahzad Hasan concentrated on his work as a music producer with Rohail Hyatt who formed a production company, known as "Pyramid Productions". After years VS-Remixes release in 1999 In 1999, Rohail Hyatt released the collection of the Signs album songs, mixed with music remixes. The VS-Remixes received negative reception from its music journalists, though interested in the idea. The VS-Remixes album's only one single, "Maula", which was the only original piece, escaped mediocrity and garnered positive marks. Maula, a patriotic song, became an ultimate success and the song received a lot of appraisal from the music journalists. Reunion in 2002 Nazia Hassan concert The Signs confirmed their participation in a "Nazia Hassan Tribute Concert" to be held in Karachi on 9 March 2002. Popularly known as "Queen of Pakistan Pop music", Nazia Hassan tragically died of lung cancer in London, shocking the entire country. The Signs sang their popular songs for the first time in almost 7 years. The concert was attended by an enthusiastic audience and it was their original line-up which went up on stage, a line-up that hadn't played together ever since mid-1990, and who still stole the show. The Vital Signs reunited for a nostalgic 30-minute stint at the high-profile concert. The band realized that a whole new generation of pop fans had grown up and their brand of pop music is still well remembered. After the Nazia Tribute Concert, the pop industry was rife with speculations that the Vital Signs were set to record their long-awaited fifth album, but these speculations were denied by the band. 2013 collaboration After eleven long years, the members of Vital Signs and Junoon collaborated to release a patriotic song, Naya Pakistan. Written by Salman Ahmad and Aania Shah featuring Shahzad Hassan on bass guitar, Nusrat Hussain on keyboards, and vocalist Junaid Jamshed. The song was recorded at Indus Music World Studios and released on 22 February 2013. Salman Ahmed while talking about his latest project at BBC Pakistan said, "For almost a decade, Junaid has always asked me not to bring guitar or to ask him to sing. When you are friends with somebody you always have to transcend differences and I respect Junaid's views. Junaid once told me that his biggest regret was not to be a part of Jazba Junoon's recording. So when we came up with "Naya Pakistan", I