Jane Fonda finds it ''weird'' being a ''fashion icon'' aged 77.

The former model - who was famous for her range of home fitness videos in the 80s - thinks it's hilarious she is still considered to be a style and health inspiration as she approaches her 80th birthday.

In an interview with the new issue of W Magazine, she said: ''Isn't it weird? In my dotage! I think it's a hoot that, at my age, people are calling me a fashion icon.''

The 'This Is Where I Leave You' actress also admitted she felt pressured into having cosmetic surgery at one stage in her life - something she is now not proud of - because she was a star who was always defined by how she looked.

She said: ''I did have plastic surgery. I'm not proud of the fact that I've had it. But I grew up so defined by my looks. I was taught to think that if I wanted to be loved, I had to be thin and pretty. That leads to a lot of trouble.''

Fonda also revealed she considers her butt to be her best asset and she likes to wear outfits that flatter her waist and rear.

She laughed: ''I've always had a good bum.''

However, she confessed she does feel insecure about the appearance of her arms now.

She added: ''These only come out during candlelight on a very dark evening.''