"Karen Elson and Jack White are now the proud parents of a healthy baby boy. The new child and his mother are both feeling very healthy and happy," E! Online quoted Chloe Walsh, White's publicist, as saying.
The White Stripes frontman started dating Elson after his two-year relationship with Renee Zellweger came to an end in 2004.
The couple married in June 2005 in a Brazil ceremony that reportedly took place in a canoe and was presided over by a shaman.