At the 2013 Grammys, Keith Urban and Nicole Kidman looked more like megastars than the humble parents of two little girls. But the day before the big awards show, Urban and Kidman were in full-fledged parenting mode when they reportedly closed down the Giggles N' Hugs children's restaurant in Los Angeles to throw their daughters a party.

Urban and Kidman dressed down for the event, with the willowy actress sporting Converse sneakers, skinny cargo pants, a plaid shirt and a denim jacket. Urban kept things comfortable in jeans and a T-shirt. The whole scene sounds pretty normal... except for the part where the 'Idol' judge and his wife shelled out big bucks to close down an entire restaurant for the afternoon.

Giggles N' Hugs is a children's-themed restaurant in the Century City Mall in L.A. The menu is full of kid-friendly entrees, but there are great food and drink selections for adults, too. Maybe that's why Urban and Kidman looked so relaxed!

Reportedly, the entire restaurant was closed to the public, and other celebs like Naomi Watts and Babyface were spotted in attendance at the party with their kiddos, too.

Following the event, the happy A-list couple was spotted leaving Giggles N' Hugs looking happy. Kidman carried 2-year-old Faith, while Urban held 4-year-old Sunday Rose's hand.

Once the kiddos had their fun, the country crooner and his stunning wife were able to get ready for an adult night on the town at the Grammys, where Urban presented.