Kaley Cuoco's short hair is inspired by Michelle Williams.

'The Big Bang Theory' star decided to go for the chop earlier this month after girl crushing on the actress' messy pixie crop in Louis Vuitton's Spring 2014 accessories campaign, and she has no regrets about her radical new look.

Kaley told People magazine: ''This haircut was big for me. I cut off like 10 inches and I love it. I haven't had my hair short in over 20 years so I needed a change. It's the best decision I've ever made.

''I wanted it to be my own, but my inspiration was Michelle Williams's Louis Vuitton campaign. I loved that haircut so much. I didn't try to copy it, but I liked that look on her.''

The 28-year-old blonde, who tied the knot with tennis player Ryan Sweeting in December, loves how versatile her new hairdo is.

She added: ''It's funny, I actually feel like I can do this hair a thousand times more differently than I could do with my long hair. I feel like it can be edgy, it can be cute, 60s... kind of whatever I'm feeling.''

Kaley and Ryan recently set up home in their 8,400-square-foot mansion in Tarzana, California - which was previously owned by Khloe Kardashian and Lamar Odom - and are making the most of married life.

She enthused: ''We're loving our new home and loving being married. It's been really wonderful. You always have your best friend there. He's always there, which is nice, and he knows that about me.''