Beyonce joined Jay-Z on stage for a duet during his appearance at Coachella festival.
The singer attended the glamorous Los Angeles festival to support her husband, and later on in his set performed Forever Young with him, E! Online reports.
Stars in the crowd watching the A-list couple included Katy Perry, Paris Hilton, Rachel Bilson and Kate Bosworth and her True Blood star boyfriend Alexander Skarsgard.
After the show, Jay-Z and Beyonce threw a small after-party at a private house in Palm Springs. They arrived at the bash at around 1.45am, where about 50 guests including Solange Knowles were already partying.
The couple returned to the festival the next day and were seen in the crowd with regular concert-goers watching UK indie rock band The XX, while Kristin Cavallari and Hayden Panettiere were spotted in the VIP bar.
During the festival, Josh Hartnett was seen riding a mechanical bull, David Hasselhoff attended with his daughter and posed for pictures with fans and Lindsay Lohan attended the Adidas party.
Newly-single Paris Hilton made the most of the dancefloor with her sister Nicky, telling E! Online it was her "best Coachella ever". She invited people to her rented house at 4am to keep partying, while Rumer Willis retired to her RV with friends.