Pink with daughter Willow and husband Carey Hart
11/14/2011 at 06:40 AM EST
For new mom Pink
, balancing a busy career and motherhood
is really just a matter of proper timing.
"As long as my boobs are at home at a certain hour, I can do whatever I want," the singer-actress, 32, told PEOPLE at the Hollywood premiere of Happy Feet Two
Pink, who voices the character of penguin Gloria in the 3D computer-animated film, finds participating in family-oriented movies more meaningful now that she and husband Carey Hart
have daughter Willow Sage
"It just touches a different part of your heart," she says.
And while 5-month-old Willow isn't yet old enough to see her mom's movie, Pink says she is looking forward to showing it to her in the future.
"In a couple years, I'm going to scare the crap out of my daughter with this movie!"