The Richie-Maddens

They're now a family of four! See how Joel Madden and Nicole Richie dote on daughter Harlow and son Sparrow

FAMOUS FRIENDS

Celebrity has its perks! Richie and Madden introduce their little ones, 3-year-old Harlow and 2-year-old Sparrow, to Woody and Buzz Lightyear on Dec. 17 after taking in a performance of Disney on Ice: Toy Story 3 at L.A.'s Staples Center.