AceShowbiz -

Carly Smithson has officially become a mother after giving birth to her first child and daughter named Olivia Mabel Smithson. The finalist of "American Idol" seventh season and her husband Todd Smithson welcomed the baby girl Sunday, September 30 at 10:55 P.M.

Expressing her delight, Carly posted on Twitter a photograph of the baby, who was sleeping on a bed and covered with a blanket. "I'd like to introduce you all to my new baby Olivia Mabel Smithson. Born September 30th at 10.55 P.M.," she introduced the newborn.

The top 6 finalist of 2008 "American Idol" met Todd, a tattoo artist, in San Diego. On June 9, they announced that they expected their first child.

After eliminated from the singing competition show in 2008, Carly joined a new band, We Are the Fallen, with Evanescence's ex-members such as Ben Moody, John LeCompt, and Rocky Gray. After signing contract with Universal Republic, the American gothic metal band unleashed their first album on May 11, 2010. A year later, the contract was dropped by the record label, but Carly still continued performing with the band.

She said that she was fine by becoming the only girl in the band. "I'm used to it," Carly once told PEOPLE. She continued, "My husband, Todd, and I own a tattoo shop, and there are all these big, tattooed dudes who make fun of accent. It's the same with these guys, except they play instruments."