HOLLYWOOD: Kate Hudson has a guilty secret — she’s the “annoying” person at the party who always likes to have a sing and dance!

The actress — who stars in the musical movie Nine — admits she likes to perform in front of her family and friends.

“People who know me know that I’m the annoying person at the party who always sings,” says Kate. “I just can’t help it. I sing the national anthem, anything. Now I guess my secret is out.”

The Bride Wars star, 30, recently revealed she quit smoking because it made her smell.

“It was starting to drive me crazy!” Hudson said. “I didn’t like the way the car smelt, or my hair and clothes.

“It takes you away from the family and the things you’re doing. You don’t realize it at the time. Then when you’re done, you go, “Wow, I do so much more in a day — including eat.”