Singers : Shaan, Shankar, Kunal, Kay Kay, Mahalaxmi, Shankar Mahadevan, Nayan, Arnab Chakraborty, Gayatri, Shweta, Sunidhi Chauhan, Babul, Saumya Music : Shankar Ehsaan Loy Lyrics : Javed Akhtar
Source: http://www.funbull.com/Lyrics/Film-Songs/Yeh-Kya-Ho-Raha-Hai.asp
