INTERVIEWSPete Wentz and Ashlee Simpson's Baby is Born

Fall Out Boy bassist Pete Wentz and his wife, pop starlet Ashlee Simpson, welcomed their first child, a boy, last night in Los Angeles, MTV.com reports.

Bronx Mowgli Wentz weighed 7 lbs., 11 oz., and was 20 1/2 inches long.

"Ashlee, Pete and baby Bronx are all healthy and happy, and thank everyone for their well wishes!" a spokesperson said.

Simpson, 24, and Wentz, 29, were engaged this past April and married the next month in a private California ceremony.