Fall Out Boy's Pete Wentz and girlfriend Meagan Camper welcome baby girl

Her name is Marvel Jane Wentz.

May 14, 2018, 10:27 AM

Congratulations are in order for Fall Out Boy bassist Pete Wentz and his girlfriend, Meagan Camper, who welcomed a baby girl over the weekend.

The musician announced the news via Instagram on Mother's Day.

"So excited to introduce Marvel Jane Wentz," Wentz, 38, wrote in a caption. "Feeling so grateful that she’s here... annnnd she’s already ready to takeover the world. Happy Mother’s Day @meagancamper and all the moms out there. We [heart] you."

Baby Marvel is the second child for the couple, who are also parents to a boy, Saint Lazlo, born in August 2014.

Wentz also shares a 9-year-old son, Bronx Mowgli, with his ex-wife, Ashlee Simpson.

PHOTO: Musician Pete Wentz and model Meagan Camper attend the 2017 Pre-GRAMMY Gala And Salute to Industry Icons Honoring Debra Lee at The Beverly Hilton Hotel on Feb. 11, 2017 in Beverly Hills.
Musician Pete Wentz and model Meagan Camper attend the 2017 Pre-GRAMMY Gala And Salute to Industry Icons Honoring Debra Lee at The Beverly Hilton Hotel on Feb. 11, 2017 in Beverly Hills.
Jeff Kravitz/FilmMagic/Getty Images

The bassist will have a few months to spend at home with his new baby until Fall Out Boy embarks on a 2018 tour in late August to promote the band's seventh studio album, "MANIA."