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In this week's "age is just a number" news … has David Foster moved on from his ex, Yolanda with Selma Blair?

The 66-year-old music producer and 43-year-old actress stepped out for dinner together at Craig's in West Hollywood, Calif., on March 1, according to a spy for Us Weekly.

And despite the two-plus decade age difference between them, "It was definitely a date," a source tells the tab.

Few other details about the evening have been revealed -- except that the would-be couple had a visitor at their table for part of the evening.

Caitlyn Jenner reportedly stopped by to say hello and chat with the pair, both of whom have numerous connections to her family, Us reports.

When Caitlyn was still Bruce Jenner, she was married to Linda Thompson from 1981 to 1986, during which time they had two sons, Brandon and Brody Jenner.

A few years later, Linda fell for David. The two wed in 1991 and went on to collaborate on multiple hit songs together prior to their divorce in 2005. (David was stepfather to Caitlyn's boys while he was married to Linda.)

The 16-time Grammy winner went on to tie the knot with Gigi and Bella Hadid's mom, Yolanda in 2011. The couple called it quits last year, citing the challenges of "managing careers, blended families and health issues," while acknowledging they'd always have "love and respect" for one another.

Yolanda, meanwhile, is good friends with Caitlyn's ex, Kris Jenner.

And -- because Hollywood is apparently a small town after all -- Selma plays a younger version of the "Keeping Up With the Kardashians" momager on the the popular FX series he "People v. O.J. Simpson: American Crime Story."

Selma endured a serious split of her own in 2012 when she broke up with fashion designer, Jason Bleick, the father of her son Arthur Saint.

She's reportedly been single since then (unless you count the time in 2015 when she and Sarah Michelle Gellar recreated their iconic "Cruel Intentions" smooch at "Cruel Intentions: The Musical" with their pal from the flick, Reese Witherspoon ...)

Selma has some ties to David's industry, too. She was married to Ahmet Zappa, Frank Zappa's son, from 2004 to 2006. And she's currently getting ready to promote her new film, "Geezer," which stars Billie Joe Armstrong as "an aging punk rocker [coping] with life after rock," according to IMDB.