Fall Out Boy's Pete Wentz Expecting Baby Girl With Girlfriend Meagan Camper

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This will be the third child for the Fall Out Boy bassist.

Pete Wentz is going to be a dad again!

The Fall Out Boy and his longtime girlfriend, Meagan Camper, are expecting a daughter this year.

Wentz made the announcement on Monday night, sharing a sweet photo of his two sons, 9-year-old Bronx Mowgli and 3-year-old Saint Lazslo, smiling as they sit on steps outside. In the pic, Saint is holding up a wrapped pink box.

"Happy New Year! We’re kicking the year off with news of the best gift yet: ?? coming to our family in 2018... love Pete, Meagan, Bronx and Saint," Wentz wrote.

Last month, the proud dad shared a sweet video of his two boys goofing around with silly string, and we can only imagine how much fun they'll have when their little sister arrives!

Wentz and Camper, 28, began dating in 2011 and welcomed Saint in 2014. The 38-year-old bassist shares Bronx with his ex-wife, Ashlee Simpson-Ross, who also has a 2-year-old daughter, Jagger Snow, with her current husband, Evan Ross.

Congratulations to the parents-to-be!