Riding on the popularity of the song and the film, Biddu decided to sign Nazia Hassan and her brother Zoheb Hassan up for an Urdu pop album, something hitherto not tried in India. Biddu modeled them on the then-popular American brother-sister duo, The Carpenters. Biddu composed a few catchy numbers for Nazia and Zoheb for the album "Disco Deewane". In 1981, the album was a hit across Asia, South Africa, and some countries in South America (particularly Brazil where it topped the chart), charting in 14 countries. The album became the best-selling Asian pop album up until that time. The 15-year-old teenage Pakistani singer Nazia Hassan became a household name across South Asia. "Disco Deewane" was followed by the production of three more heavy hitters with Nazia and Zohaib; "Star/Boom Boom" in 1982 (the number "Boom Boom" from the album and film "Star" was a hit), then the album "Young Tarang 1984" two years later, before winding up again with the duo in 1987 with "Hotline". The duo went on to sell 60 million records worldwide.