Bollywood actor Hrithik Roshan makes his debut as a singer in his much-awaited film "Kites", for which he rehearsed 24/7 -- be it while brushing his teeth or taking a shower.

"Early in the morning, I would start with my sa re ga ma... right from the time I would wake up to brushing my teeth to taking the shower, all the time I sang with hand movements trying to reach the highest scale and the lowest note, " Hrithik said.

The song "Kites in the sky" is in English and will be launched on national television along with behind-the-scenes footage March 29 at 9.30 p.m.

"I was nervous to make my debut as a singer, considering I come from a family that is well known in the world of music, but for this very reason my chacha (Rajesh Roshan) and director Anurag Basu were most certain that I could sing, " Hrithik said.

"My niece has learnt piano and she has this little Casio player which I borrowed. And I have the knack of finding any tune on any instrument. So I practiced on that for a week. Then I realized that it won't work like that and I got a professional trainer.

"I have given this song my best and honest shot but I still don't consider myself a professional singer, " the 36-year -old said.

The actor, who has done hit films like "Kaho Naa...Pyaar Hai", "Koi... Mil Gaya", "Krish" and "Jodha Akbar" among others, also revealed that his recording experience was different from what he expected.

"I had fallen in love with the art of shutting your eyes from the world and going in meditative state where you just sing. But when I went to the studio, it was a totally different story.

"They put you in this little compartment and you are not allowed to move because the mike is fixed. While practicing I had been so mobile. And now I was locked up in one place where I couldn't even move my legs because the breath shifts in different direction, " Hrithik said.

"Finally, I told them to just switch off all the lights of the studio because I wasn't being able to get my best out. So they just blacked out the entire studio. I could not even see my mike because it was so dark. This blackout worked and helped me to come out of the inhibitions in the mind. That's how I finally worked, " he added.

What does his wife Suzanne say about his new skill?

"She is obviously completely biased. She feels I am the best singer in the world. She compares me to Elvis Presley, " Hrithik said.

"Kites" is a film by Reliance Big Pictures and Rakesh Roshan. It is about two lovers and their thrilling journey filled with precious moments and unexpected betrayal.

The film also stars Mexican actress Barbara Mori, It will hit the screens May 21.