David Foster's daughter Sara says her friends 'always wanted to date' her dad

David Foster’s daughter Sara said her father’s “essence and aura” has always attracted women, even her friends.

Sara Foster, 37, told Us Weekly at Amazon's Back-to-School Prep event in Los Angeles that her 68-year-old father is “like forever young.”

“His essence and his aura is that of like a 40-year-old,” Foster said about her father. “My 30-year-old friends have always wanted to date him. Always!”

Foster also spoke about her father’s engagement to singer Katharine McPhee, who is 34 years younger than David Foster. The couple announced in early July they got engaged during their romantic trip to Italy. The news caused such a stir that McPhee, 34, defended her engagement on social media.

DAVID FOSTER'S DAUGHTER, ERIN, CALLS KATHARINE MCPHEE 'MOMMY' FOLLOWING ENGAGEMENT NEWS

Sara Foster also hit back at critics on Saturday and said the “age difference [between David Foster and McPhee] means nothing” and that people should “mind their own business.”

“People need to just get over it,” she told the magazine.

Sara Foster has previously gushed about her future stepmother.

A post shared by David Foster (@davidfoster) on

“We approve of whoever is going to be good to my dad; at the end of the day and we’re very honest about it,” Foster told Us Weekly last December. “If we ever thought that anyone was in something for the wrong reasons, we would be very vocal about it."

"We just want someone that’s going to treat him well and that cares about him, and I think he’s with someone right now that really does," she added. 

 - Pacific Palisades, CA - 08/18/2018 -Jenna Dewan and Sara Foster host Amazon Back-to-School Prep in the Pacific Palisades. 

-PICTURED: Sara Foster
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Sara Foster attends Amazon's Back-to-School Prep.  (Michael Simon Photography for Amazon )

KATHARINE MCPHEE DEFENDS ENGAGEMENT TO DAVID FOSTER: 'Y'ALL SHOULD BE WORRYING MORE ABOUT REGISTERING TO VOTE'

David Foster’s other daughter, Erin, also gave her seal of approval to the engagement shortly after the announcement in July. 

 Erin — who is a year older than McPhee — commented on her father's Instagram post, "Mommy," while Sara jokingly responded, "Out of the country. What did I miss?"

Katherine Lam is a breaking and trending news digital producer for Fox News. Follow her on Twitter at @bykatherinelam