Nicole & Joel's Studio Studies

Nicole Richie arrives at Siren Studios in Hollywood on Friday with Joel Madden following closely behind.

The recent mom, 26, was in a perky mood with her early morning coffee and bottle of water. No sign of baby daughter Harlow.

Even BFF Paris Hilton has been changed by Harlow! “Nicole is our first friend to have a baby . Seeing Harlow, really makes me want one. I’ve always wanted to have a baby!”, said Paris.

Who’s ready for little Paris Hiltons running around?!?!