December 22, 2015 11:35 AM

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How smashing: Musician Billy Corgan is a dad!

The singer-songwriter and Chloe Mendel welcomed their first child, son Augustus Juppiter Corgan, on Monday, Nov. 16, his rep confirms to PEOPLE.

Mendel managed to keep the pregnancy under wraps and no other details surrounding their baby boy’s birth have been released.

Corgan, 48, who is best known as the founder and frontman of the ’90s alternative rock band The Smashing Pumpkins, is also a poet.

New York City native Mendel, 22, is an artist and the daughters of fashion designers Gilles Mendel and Jenny Mui.

The new dad has had a bit of practice in the parenting field: Corgan has posed with his adopted cats, Sammi and Mr. Thom, in the past while advocating for animal rights.

— Anya Leon

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