Kaley Cuoco's huge Big Bang Theory regret: 'What was I thinking?'

Big Bang Theory star Kaley Cuoco has opened up about her huge regret during her time on the long-running sitcom.

Fans would remember the star chopped her iconic blonde locks ahead of season eight in 2014, making her character Penny almost unrecognisable with a short pixie cut.

Kaley told People she had cut her hair for a movie role and thought it would save her time in the hair and makeup chair ahead of filming her Big Bang Theory scenes.

"I don't know if I was being rebellious," she told People.

"I mean, I did do it for [the film Burning Bodhi], which was my excuse to cut it. At that point, we were heading into our eighth season and something needed to shake up.

"I was bored and sick of the hair, and what's funny is I thought by cutting my hair, I would spend less time in the hair and makeup chair, even though I loved the hair and makeup team."

Kaley however was wrong, and she added her decision "bit her in the a***" as it took even longer to style.

"I was like, this is the worst decision! What was I thinking?! I thought I was cutting off all this time because I hated going in and getting ready," she said.

"That's why I was wearing my hair up so much in seasons six and seven. So then I cut it and it ended up being more work because it wasn't easy to style."

RELATED:

• Home and Away's Lukas Radovich shocks with hair transformation

• MAFS' Ella Ding shocks fans with dramatic haircut: 'So inspiring'

• Patrick Dempsey divides fans with major hair transformation: 'Wrong'

Kaley surprises with sweet announcement

Earlier this week the Big Bang Theory star announced she was expecting her first baby with boyfriend Tom Pelphrey.

"Baby girl Pelphrey coming 2023, beyond blessed and over the moon… I [love] you @tommypelphrey," Kaley wrote on Instagram.

Tom also shared some photos, writing, "And then it was even MORE BETTER... Love you more than ever @kaleycuoco."

The pair made their first public appearance at the Emmys earlier this year, where Kaley was nominated for Outstanding Lead Actress in a Comedy Series for the dark comedy The Flight Attendant.

Never miss a thing. Sign up to Yahoo Lifestyle’s daily newsletter.

Or if you have a story idea, email us at lifestyle.tips@yahooinc.com.