It's a girl for Lily Allen!

British singer Lily Allen, 27, and hubby Sam Cooper have welcomed their second child — another girl!

Baby reportedly arrived Tuesday, Jan. 8. And the name is....

Marnie Rose.

Baby Marnie joins big sister Ethel Mary, who's just 13 months old. That's going to be a busy household...!

No word from Lily Allen's peeps yet. But, Lily did tweet this earlier today: "Quite overwhelmed by all the well wishing going on. THANKYOU everybody x x x."

Congrats to the family!

Love! xo Haley-O

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