Demi Moore and Bruce Willis cheered on Rumer on DWTS.

Family affair! Bruce Willis and Demi Moore reunited on Monday, March 16, in honor of their daughter Rumer Willis

Fifteen years after they divorced, the former Hollywood power couple put aside their differences to cheer on Rumer as she competed on the season premiere of Dancing With the Stars. The actress, 26, showed off her steps with partner Valentin Chmerkovskiy and seriously impressed the judges, earning the highest score of the night. 

As Rumer and Chmerkovskiy, 28, spun around to Hozier's "Take Me to Church," Bruce, 59, and Moore, 52, clapped for their daughter alongside younger daughters Scout, 23, and Tallulah, 21. The Vice actor was also joined by his second wife Emma Heming, while Moore sat one row back. The two stars married in November 1987 and welcomed their three daughters in 1988, 1991, and 1994. They announced their split in 1998 and filed for divorce in October 2000.

"Demi and Bruce did not speak the entire two-hour show at all," an eyewitness tells Us Weekly. Moore famously went on to marry and later divorce Ashton Kutcher, while Bruce and Heming welcomed two daughters. "However, Tallulah and Scout could not have been more thrilled and excited to be there! Even in the very beginning of the show, they were dancing and singing to all the music and looking really excited."

"When the opening number happened, Tallulah turned around and told her mom how excited she was to be there," the insider added of the former child actress. "She loved it! The best part was when Rumer danced — Tallulah in particular was losing her mind and was cheering and screaming. She was in tears and just yelling for her sister. It was adorable!"

Tallulah was so excited for her sister that even Rumer noticed while tapping out her footwork.

"I thought my sister was going berzerk!" Rumer told Us Weekly. "But I had been struggling with this one part and I was keeping my eyes on them and tonight I focused and seeing them all smiling, I was amazed with how good it felt to see them."

"It was amazing, I literally had a whole section!" she added with a laugh to Us about her group of family supporters. "I wanted people here tonight who love and support me unconditionally and I really felt that. I couldn't have asked for anything else."

Rumer and Chmerkovskiy nabbed a final score of 32, beating out second-place finishers Riker Lynch and Allison Holker, as well as the high-performing pair of Nastia Liukin and Derek Hough. After the show, Rumer told Us Weekly that the performance felt "crazy and amazing." 

"It was all a blur!" she spilled to Us. "I felt such raw emotion going into it and at the end I just had this huge smile... It was one of the most amazing experiences of my life."