Aamir Khan, who is hopping from one city to another to promote his forthcoming release "PK", says he's nervous with butterflies "opening their wings" in his stomach.

The film, directed by Rajkumar Hirani and produced by Vidhu Vinod Chopra, releases Dec 19.

"6 days to go guys! In Jaipur today, butterflies are really opening their wings now. I've lost my appetite, which is good because I need to lose weight in any case," Aamir tweeted Saturday.

The actor was recently in Varanasi, Ahmedabad and even Raipur to promote the entertainer, which also stars Anushka Sharma.

Aamir is already over the moon with the feedback he's received from his family members, and he's hoping the audience loves it as much too.