Kevin Jonas & Wife Danielle Welcome Daughter

Kevin Jonas and Danielle Jonas
Steve Zak Photography/WireImage

Kevin Jonas and Danielle Jonas attend The Knot Gala 2015 at New York Public Library on Oct. 12, 2015 in New York City.  

Nick and Joe Jonas bother offered their congratulations on Twitter.

Kevin Jonas and his wife Danielle Deleasa welcomed a baby girl on Thursday (Oct. 27). 

The couple has been married since 2009. The newborn joins sister Alena Rose, who turned 2 in February.  

Jonas' brothers Nick and Joe shared news via Twitter, congratulating their big bro and sister-in-law. 


Kevin had been live tweeting the birth, with a sense of humor: