Babies

Nicole Richie and Joel Madden Tweet About Newborn Son

By Michael Y. Park

09/10/2009 at 01:05 PM EDT

If you're going to name your son Sparrow, what better way to share the joy than to Tweet about him on Twitter?

Nicole Richie and Joel Madden have taken to the social-networking service to gush over their newest addition, Sparrow James Midnight Madden, born Wednesday.

PHOTOS: Nicole's Hippie-Chic Maternity Style

"Geuss who's back ... Oh i'm sorry we were only having a little baby boy," Madden, 30, wrote Wednesday morning.

Two hours later, he boasted about his newborn's early achievements.

"1st day of his life & my son is already a trending topic on twitter," the proud papa, 30, wrote. "That's right son, ur just like your old man."

"What a great day to come back on Twitter," Richie, 27, wrote. "Thank you everyone for your well wishes. I love my family!!"