Inside 'Orange Is the New Black' Star Taylor Schilling's Birthday Party

The "Orange Is the New Black" star celebrated with many of her co-stars.

— -- Taylor Schilling had a very happy birthday!

The night before the "Orange Is the New Black" star turned 30, she celebrated with her Netflix co-stars at Catch Roof in New York City.

"Taylor looked beautiful and was in a fantastic mood throughout the night," an insider told ABC News. "She kept saying how she couldn't believe she was celebrating her 30th!"

Why Taylor Schilling Calls 'Orange Is the New Black' Her 'Golden Ticket'

Which Star Isn't Returning for Season 3 of 'Orange Is the New Black?'

To help her toast the milestone, Schilling was joined by many of her pals from the show, including Natasha Lyonne, Laura Prepon, Uzo Aduba, Samira Wiley, Selenis Leyva, Kate Mulgrew, Laverne Cox, Vicky Jeudy, and Joshua Jackson. As the group sipped cocktails, a three tiers of "OITNB"-themed cupcakes were wheeled out with sparklers.

"That was a fun weekend. @tayjschilling birthday!! #myfriend," wrote Aduba on Instagram, along with a photo of the treats.