Nicole Richie and her husband Joel Madden have welcomed the birth of their second child.

Sparrow James Midnight Madden was born Wednesday and weighed 7 pounds, 14 ounces, according to a message on Richie's website.

Sparrow becomes the latest in a long line of celebrity babies with unusual names.

Jermaine Jackson has a son called Jermajesty, while Gwyneth Paltrow and Chris Martin attracted criticism in 2004 when they named their first child Apple.

Richie and Madden, who fronts rock band Good Charlotte, have another child, two-year-old Harlow.

A message on Richie's website said: “Nicole, Joel, Harlow and Sparrow are all doing well. Thank you for all of your good wishes."