Krishnakumar Kunnath (born 23 August 1968), popularly known as KK, K.K. or Kay Kay. He is a prominent singer in Hindi, Telugu, Tamil, Kannada and Malayalam films
KK has a broad vocal range and is considered as one of the most versatile singers of India. Some of his most popular songs are "Tadap Tadap Ke", "Khuda Jaane", "Dil Kyon Yeh Mera Shor Kare", "Sach Keh Raha Hai Deewana", and "Tu Hi Meri Shab Hai".
His debut album Pal was released in April 1999. The album received a Star Screen Award from Screen India for Best Solo Album
His second album, Humsafar, was released nine years later, in January 2008. It belongs to the pop-rock genre and has a total of 10 songs. Humsafar has two songs that are repeated from his earlier album Pal – "Din Ho Ya Raat" and "Mehki Hawa". The video for a romantic song on the album, "Aasman Ke", features the singer and south Indian model Suhasi Goradia Dhami. "Humsafar", the title track, has an interplay of English and Hindi lyrics and is about one's conscience and how it is a constant companion in the journey of life. One of the songs, "Yeh Kahan Mil Gaye Hum", was penned seven years before the release.
"Dekho Na", a rock number, was written six years prior. The remaining six songs were developed in the last two years before the release. Other songs in the album include "Rain Bhai Kaari (Maajhi)", a mix of Bengali Baul with rock with a tinge of S D Burman, and "Cineraria", a fun-filled English ballad. KK himself wrote the lyrics of "Cineraria" and the English part of "Humsafar", the title track, while the remaining tracks were written by others.