Teen heartthrob Andrew Keegan is a dad!

The 10 Things I Hate About You star and his girlfriend, Arista Ilona, welcomed their first child, daughter Aiya Rose Keegan, on March 15, his rep confirms to People magazine.

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R/R

Andrew and Heath Ledger in 1999’s 10 Things I Hate About You.

“My beloved partner and I are overjoyed to welcome a healthy baby girl into our world. Our hearts are full of love, and we are thrilled to embrace our role as her parents,” Andrew said of the infant, who weighed in at 8 lbs., 3 oz.

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The 37-year-old first revealed that Arista was expecting back in October. “Our intention is to raise our child in a co-creative environment where truth and love are foremost,” the actor, who is the co-creator of spiritual center Full Circle Venice, said at the time.

Congrats to the new family-of-three!