09/22/2013 04:00 pm ET

'Gossip Girl' Star Kaylee DeFer Welcomes Baby Boy

Fame Flynet

"Gossip Girl" star Kaylee DeFer and her musician boyfriend welcomed a baby boy this weekend.

DeFer and Michael Fitzpatrick of Fitz & the Tantrums confirmed the birth of their son, Theodore Ignatius Fitzpatrick, to Us Weekly. The baby was born Friday, Sept. 20 at 10:14 p.m. weighing almost 9 pounds.

Fitzpatrick was scheduled to play at 91x' 2013 X-Fest in San Diego alongside bands like Blink-182 and 30 Seconds to Mars, but had to cancel when his partner went into labor. The group posted a congratulatory message to the new dad on Saturday.

The pregnancy was a surprise for the actress, 26, and her 43-year-old beau.

"We weren't planning on getting pregnant, so right now we're just enjoying being pregnant," she told Us Weekly in May. She added that the pregnancy came at a great time, however. "I've been thinking about venturing into new creative outlets. Mostly writing, still in the acting genre. I have a lot of time on my hands. I've been wanting to take a break, and now I can do the things I didn't have a chance to do before."

DeFer played Ivy Dickens on the CW series. She was previously engaged to jewelry designer Michael Pereira.



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