Actress Jada Pinkett-Smith uploaded a sexy picture of herself on Twitter Friday, wearing a bikini that proved that she's still got it and left little to the imagination.

Much media attention lately has focused on Willow Smith, the 11-year-old daughter of Jada Pinkett-Smith and her husband, actor Will Smith, who recently tweeted a photo of herself with a tongue ring and has dyed her hair green and blonde.

But now focus is on Pinkett-Smith, who, at age 40, has rock-hard abs and is looking fantastic.

Along with her bikini photo, Pinkett-Smith tweeted an inspirational message: "To my Forty and over crew! Don't believe the hype...we DO get better with age!"

While it is unclear where the photo was taken, it is evident that Jada Pinkett-Smith is doing a great job staying in shape.

Most recently, Jada Pinkettt-Smith voiced the role of Gloria the Hippo in Dreamworks' animated comedy, "Madagascar 3: Europe's Most Wanted."

Pinkett-Smith is not the only fit and fabulous actress over 40. Check out these other five women who are getting sexier with age.

Actress Jada Pinkett-Smith rocks a sexy two-piece and posts the photo on her Twitter account.

Singer and actress Jennifer Lopez is showing no signs of slowing down. At the age of 42, she has a boyfriend 18 years younger, and was named People Magazine's most beautiful woman in the world just last year.

45-year old actress Halle Berry is age-defying. At the age of 42, she was honored with the "Decade of Hotness" award at Spike TV's 2009 “Guys Choice” Awards.

As age 46, actress Stacey Dash is never-aging. In 1995, she got her big-break playing a teenager in the hit movie, "Clueless," where she played 17-year-old Dionne, even though in real life, she was 29 years old.

This Oscar-nominated actress proves that beauty is timeless. Last year, she made The Los Angeles Times' list of 50 most beautiful women in films.

Married to actor Michael Douglas, Welsh-born actress Catherine Zeta-Jones has been widely recognized for her beauty. She was hailed the most beautiful British woman alive last year, according to England newspaper the Daily Express.