Joe Imel / Invision/AP 1 / 5
Joe Imel / Invision/AP 1 / 5

By Wenn

Fall Out Boy star Pete Wentz is a dad again following the birth of his second son, Saint Lazslo.

RELATED: Pete Wentz confirms baby news

The 35-year-old rocker's model girlfriend Meagan Camper gave birth on Wednesday in Los Angeles.

Wentz and his partner didn't know the sex of their baby until he was born.

RELATED: Pete Wentz talks fatherhood, pill addiction, paranoia

The musician also has a five-year-old son, Bronx, from his previous marriage to Ashlee Simpson.

RELATED: Pete Wentz praises ex-wife Ashlee Simpson: 'She's an awesome mom' to Bronx