"Little Oliver Neil Allen is here!" the rep tells Us. "He's 7 pounds, 7 ounces, 20 3/4 inches long. Mom and baby are doing great."
Allen first revealed his wife's pregnancy in January, after he was injured in a car accident. "Thank you, Ford, for equipping me with a car that kept my whole family and the little one we have on the way safe," he tweeted. "Yes, I got in a really bad wreck tonight, and yes, I'm having a lil baby."
Two months later, he opened up about first-time fatherhood-to-be at the SXSW Festival in Austin. "I am really excited," he gushed. "I've always wanted to be a dad...[Katy has] already started buying him clothes like mine. He's already got some [fedoras]."
This is the first child for the singer and his wife. Together since high school, they married in September 2008.