Mumbai, Sep 8 (IANS): Kareena Kapoor's "Halkat jawani" is having positive effects on her beau, actor Saif Ali Khan. He is such a fan of the song that he exercises with the peppy number in the background.

"He (Saif) is very excited (about 'Heroine'). He liked the first promo, everyone has been talking about the dialogues, but he is very supportive. He actually runs on the treadmill with the song ('Halkat jawani') on , so I am making him run and lose some weight," the 31-year-old said here.

Kareena spoke here Friday on the sidelines of the launch of the title track of "Heroine", directed by Madhur Bhandarkar. The movie releases Sep 21.

Meanwhile, asked about her marriage plans, Kareena said: "We are not giving that topic so much importance, but you all are. Right now there is no time to think about it. I have been promoting the film, there is some sort of event (all the time). Because of that, we don't even have any time to think about it."

Saif's mother Sharmila Tagore has reportedly confirmed October as the wedding month, but the two actors have constantly been dodging the wedding questions.