NEW YORK, NY - MAY 20: "Fall Out Boy" band member Patrick Stump visits "U&A" at Music Choice on May 20, 2013 in New York City
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Any devoted Fall Out Boy fan knows that two things are missing from lead singer Patrick Stump's life: tattoos and children. But come October, one of those things will change.

Nope, no sleeves for Stump (yet!), but a baby on the way for the Chi-town singer! In a radio interview with 102.7 KIIS FM today, the 30-year-old rocker announced he's expecting his first child with wife Elisa Yao at the end of next month.

"The band is in a crazy place right now because there's a lot of little kids running around," Stump said in the chat. He's not exactly joking either: Pete Wentz has two sons (Bronx and Saint Lazslo) and guitarist Joe Trohman has a daughter, Ruby. After baby Stump comes, drummer Drummer Andy Hurley will be the only FOB member without a Fall Out Boy (or girl) of his own.

Stump and Yao were married in October 2012. This will be the first child for both of them. Listen for Stump's announcement in the clip below!