At the start of his career, Hariharan did the concert circuit and also performed on TV. He sang for a number of TV serials (e.g., Junoon). In addition, he cut several successful ghazal albums, writing most of the scores himself. One of Hariharan's first ghazal albums was 'Abshaar-e-Ghazal' with AshaBhonsle, which went gold in sales. Another outstanding ghazal album was Hazir with Ustad Zakir Hussain. 'Gulfam', released in 1993 won him the Diva Award for the Best Album of the year. Hariharan entered the world of Tamil films in 1992 with the patriotic song "Thamizha Thamizha" in Maniratnam's film Roja. He was judged best male playback singer in the 1995 Tamil Nadu State Government Film Awards for his soulful rendition for the song konjanaal from the film Aasai. 'UyireUyire' is better known as "Tu Hi Re" in its Hindi version made Hariharan a household name and is still a hot favourite. In 1998, Hariharan won the national award for the best playback singer. In 1996, Hariharan and Leslie Lewis formed a band called Colonial Cousins. They were the only Asian band to perform in the MTV Unplugged show. Their other albums include THE WAY WE DO IT , AATMA, COLONIAL COUSINS UNPLUGGED. He has toured U.S.A. in 2002, 2004 & 2007 performing Ghazal Concerts at more than 15 Cities each time. Hariharan also coined the terminology "Urdu Blues" with his immensely successful album "Kaash" which featured musicians like Anandan Sivamani the percussion maestro, Ustaad Rashid Mustafa on tabla, Ustad Liyaqat Ali Khan on Sarangi. Hariharan also worked with tabla maestro Zakir Hussain on his ghazal album Haazir.