Katharine McPhee and David Foster say they won't give their son music industry 'advice' because he should 'figure it out' for himself

• Katharine McPhee imagined the advice she and David Foster might give their son about pursuing music.
• She believes that if he needs their guidance, it's "probably not going to happen" for him.

Katharine McPhee Foster and her husband David Foster share a wealth of music business insight between them. But their 21-month-old son Rennie David Foster shouldn't bank on any advice if he plans to enter the industry.

"I know what my husband would say and I guess I've sort of adopted his belief," McPhee Foster told Fox News Digital. "He'd say, 'If you need my advice or if you need me to tell you how to figure it out, then it's probably not going to happen to you.'"

McPhee Foster and Foster both have long, successful careers in music. McPhee's kicked off in 2006 after she won the runner-up title on season five of "American Idol" and continued on to star in the NBC musical drama "Smash" in the early 2010s. Foster, who is 35 years older than his wife, has a storied career in the music industry as well, having won 16 Grammy Awards as a producer, songwriter, and musician. The two first met when Foster joined "American Idol" as a guest coach and married 13 years later.

McPhee Foster previously posted a photo on Instagram in May 2021 showing her husband lifting Rennie above the keys of a grand piano. In a February 2022 interview with People, Foster joked that his then 11-month-old son played "Mozart and Bach flawlessly."

McPhee Foster told Fox News that she felt that "people who are really meant to do something" will figure out how to make it happen on their own.

"I think practice and perseverance are probably the best keywords we will share with him to make it happen," she said. "But the only person who can figure it out for yourself is you."