Music icon Beyonce celebrated her 42nd birthday in a spectacular way on Monday night during her Renaissance World Tour concert in Los Angeles. The star-studded event was filled with surprises, but the highlight of the night came when legendary singer Diana Ross made a surprise appearance on stage to sing “Happy Birthday” to Beyonce.

Dressed in a shimmering black dress with feather cuffs, Ross captivated the 70,000-plus crowd at SoFi Stadium. Rumors of Ross's appearance had been circulating for weeks, especially since Beyonce had serenaded Ross on her 75th birthday back in 2019. Fans went "upside down" with delight, according to a TikTok video capturing the moment.

In the emotional video, which was posted early Tuesday morning, Beyonce can be seen looking visibly moved as Ross and the crowd belted out the familiar tune. After the song, the two singers embraced, and Beyonce expressed her sincere gratitude. "Thank you so much, you are so amazing," she gushed. "There would be no me without you. Thank you for opening doors for me. Thank you so much for all of your sacrifice and your beauty and your grace."

Ross humbly replied, "You sang Happy Birthday to me, so I wanted to sing it to you." The Motown legend's warm smile highlighted the genuine friendship between the two stars. In a 2006 interview with Entertainment Weekly, Beyonce had praised Ross as an inspiration for her music and acting career, saying, "She's an all-around entertainer: a great actor, a good singer, and a beautiful, elegant woman."

The birthday surprise was captured by several fans in attendance, including reality star Kim Kardashian, who shared the moment on social media. Kardashian attended the concert with her sister Khloe Kardashian, mom Kris Jenner, daughter North West, and niece Penelope Disick. They also had the opportunity to take photos with Amazon founder Jeff Bezos and his fiancee, Lauren Sanchez.

Other celebrities spotted at the concert included actress Kerry Washington, who posed with Meghan Markle and Beyonce's former Destiny's Child bandmate Kelly Rowland. Comedian Chris Rock and singer Lizzo were also seen together, adding to the star-studded atmosphere of the event.

Beyonce's daughter, Blue Ivy Carter, also made a special appearance on stage, continuing her tradition of joining her mom during the Renaissance World Tour. The 11-year-old, who shares her father Jay-Z's talent, regularly showcases her dancing skills to the song "My Power."

The Renaissance World Tour, which kicked off after the release of Beyonce's chart-topping album “Renaissance” last year, is projected to bring in a whopping $2.1 billion in revenue, according to Forbes. The tour started in Stockholm on May 10 and will conclude in New Orleans on September 27.

Beyonce's birthday celebration truly showcased the love and admiration she receives from fellow artists and fans alike. With a surprise appearance by Diana Ross, a star-studded audience, and heartfelt moments shared on stage, it was an unforgettable night for the music icon.