Lisa Rinna shows off her incredible bikini body

Lisa Rinna shows off her incredible bikini body in blue two-piece at Beverly Hills pool party as she prepares to turn 50 

She turns the big 5-0 on Thursday.

And birthday girl Lisa Rinna showcased her incredible bikini body in a sexy blue two-piece on the lush lawn of a Beverly Hills pool party Friday.

There was not an inch to pinch on the evergreen mother-of-two, who reportedly sculpts her famous figure with trainer Jeff Deperon and hour-long Kundalini yoga sessions four to five times a week.

Turning 50 on Thursday! Lisa Rinna showcased her incredible bikini body in a sexy blue two-piece on the lush lawn of a Beverly Hills pool party Friday

The former Celebrity Apprentice contestant has also enlisted the help of plastic surgeons for her ample cleavage, full lips, and wrinkle-free face.

Lisa, who also likes to juice fast, appeared to be at the soiree solo despite being surrounded by family for the July Fourth long weekend.

Not seen Friday was the Days of our Lives star's longtime husband Harry Hamlin and their long-haired daughters - 15-year-old Delilah and 12-year-old Amelia.

Evergreen: There was not an inch to pinch on the 49-year-old mother-of-two, who reportedly sculpts her famous figure with trainer Jeff Deperon and hour-long Kundalini yoga sessions four to five times a week

Well preserved: The former Celebrity Apprentice contestant has also enlisted the help of plastic surgeons for her ample cleavage, full lips, and wrinkle-free face

However Rinna posted several poolside Instagrams of her family, including a close-up of Delilah and one of herself in a leopard-print bikini.

Harry looked as retro as his Mad Men character Jim Cutler in one shot with his white dress shirt, grey trousers, and geek-chic glasses.

The 61-year-old actor will next appear in the drama The Bronx Bull - due out October 11 - with Paul Sorvino, Natasha Henstridge, and Penelope Ann Miller.

Fit at 50: Rinna posted several poolside Instagrams of her family, including one of herself in a leopard-print bikini while her daughter swims nearby

Good genes: The Days of Our Lives star also shared this close-up of her beautiful 15-year-old daughter Delilah

Family bonding: Lisa and longtime husband Harry Hamlin are also parents to 12-year-old Amelia (R)

Meanwhile last month, Lisa dressed up as Marilyn Monroe for her appearance on ABC's upcoming celebrity singing competition Sing Your Face Off.

'I can't wait until you see the Talent on #SINGYOURFACEOFF it's going to blow your socks off! We sing,dance,act and impersonate Pop icons,' Rinna tweeted to her 217,000 followers.

According to Entertainment Weekly, actor John Barrowman (Torchwood, Arrow) will host the show where five celebs take on the songs of other celebs.

'It's going to blow your socks off!' Last month, Lisa dressed up as Marilyn Monroe for her appearance on ABC's summer celebrity singing competition Sing Your Face Off

SNL's Darrell Hammond and pop singer Debbie Gibson serve as judges for the series which premieres later this summer.

Other contestants include ex-Skid Row frontman Sebastian Bach, comedian Jon Lovitz, and Toronto Raptors player Landry Fields.

Lisa also serves as the designer of Belle Gray, a clothing line sold through QVC.

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