Looks like Chris Robinson will be on diaper duty this New Year's Eve. The Black Crowes frontman and wife Allison Bridges welcomed a daughter on Saturday, their first child together, a rep for the musician tells People. "Chris Robinson and his new wife, Allison Bridges, have a healthy and beautiful baby girl," says the star's rep. "Cheyenne Genevieve Robinson, 6 lbs., 3 oz., was born on December 26, 2009 at the Robinsons' home in California." Robinson, who married Bridges earlier this year, confirmed in September that they were expecting their first child together. It's his second child. He has a son, 5-year-old Ryder Russell, with ex-wife Kate...