Diana Ross' son Ross Naess tied the knot with long-time partner Kimberly Ryan on Saturday (10.06.17).

Ross Naess wedding on Evan Ross (c) Instagram

Ross Naess wedding on Evan Ross (c) Instagram

The 'Ain't No Mountain Higher' hitmaker attended and sung at the 29-year-old hunk's ceremony and his younger sibling, Evan Ross, 28, also serenaded the newlyweds.

Sharing a picture from the ceremony on Instagram, Ross - whose wife is pregnant with their second child, who will become a brother or sister to toddler Leif - wrote: "A perfect moment during a perfect weekend with my mom, my pregnant bride, and my first born son. #camphappinaess (sic)"

Diana's grown-up children, Evan and Tracee Ellis, 44, also took to Instagram to share special moments from the couple's "bohemian style" wedding.

Evan - who attended with his wife Ashlee Simpson Ross, with whom he has 22-month-old son Jagger Snow Ross - wrote: "#MagicalWeddingWeekend Sharing some fav pics from my brother @RossNaess' beautiful wedding to @Kimberly_Ryan so much love! (sic)"

And Diana's eldest girls Chudney, 41, and Rhonda, 45, also attended.

Tracee shared a series of clips from the big day on her Instagram Story of her and her brothers and sisters having dance offs at the post-wedding party.

Tracee added: "My gorgeous brother @RossNaess, me and my sisters @TheRhondaRoss and @ChudneyLRoss, and me! All the ladies wore white! For more fun pics and me trying to dance like @RealEvanRoss, go to my Instagram Story! (sic)"

It is not the first of her children's weddings Diana has sang at. The 73-year-old star performed at her son Evan's wedding to Ashlee Simpson in 2014 and again the following year when her daughter Chudney married Joshua Faulkner.