updated 09/11/2009 AT 2:40 PM ET
•originally published 09/11/2009 AT 3:00 PM ET
After Nicole Richie and Joel Madden named their son Sparrow James Midnight Madden, speculation has brewed over how they came up with the avian moniker. The answer may have arrived, appropriately, in a Tweet.
“A song for the little songbird,” Madden writes on his Twitter page, and links to “Sparrow” from Simon & Garfunkel.