Kaley Cuoco burst into tears when she learned she was nominated for her 1st Golden Globe award

• The 2021 Golden Globes nominations were announced Wednesday morning.
• Kaley Cuoco burst into tears when she learned she was nominated for "The Flight Attendant."
• Cuoco was never nominated for "The Big Bang Theory."

Kaley Cuoco has a big reason to celebrate: She finally has her first Golden Globe award nomination.

Cuoco is among the nominees for best performance by an actress in a musical or comedy TV series for her leading role on HBO Max's "The Flight Attendant."

The actress shared a video of herself Wednesday bursting into tears as she learned the news.

"Oh my God. I can't believe it," she told her husband, equestrian Karl Cook, who filmed her reaction.

A post shared by Kaley Cuoco (@kaleycuoco)

"The Flight Attendant," produced in part by Cuoco's Yes, Norman Productions, stars the actress as a flight attendant who gets caught up in a murder mystery.

The series, which has already been renewed for a second season on HBO Max, was also nominated for best musical or comedy series.

Cuoco shared videos of her reactions to both nominations on Instagram.

"Thank you @goldenglobes #hfpa I will never ever forget this moment and I can't stop crying ... so proud of my entire team @flightattendantonmax ✈️ !!!!! YES NORMAN! ," wrote Cuoco, giving a little shout-out to her beloved dog, who died in January. (Cuoco coined her production studio after him in 2017.)

Read more: Kaley Cuoco and Karl Cook moved in together 2 years after they got married. Here's a timeline of their relationship.

"The Flight Attendant" is Cuoco's first original series after spending over a decade on CBS' hit comedy, "The Big Bang Theory."

Despite her costars Johnny Galecki and Jim Parsons being previously nominated for their work on the long-running series, Cuoco was never nominated for her popular role as Penny.

Parsons went on to win a Golden Globe and four Emmys for his role as Dr. Sheldon Cooper.

The 2021 Golden Globes will air Sunday, February 28 at 8 p.m. ET/PT on NBC.