Cher

He also shot career-changing music videos for Aerosmith, Heart and Cher.

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In between all the talking, there was some rocking.

"It was easier getting divorced from two men than it was to get into the Rock & Roll Hall of Fame," she joked.

The two singers joined forces for a rendition of "Believe."

Rock's biggest stars turn up for the big event - and they all got to hug Flavor Flav.

Kool & the Gang and Dave Matthews was also in attendance at the pre-Hall of Fame event.

Singer had been fighting to regain her 50% stake in the Sonny & Cher catalog.

She previously blasted the Hall of Fame and told them to "go you-know-what themselves."

The induction ceremony will take place on October 19 at the Rocket Mortgage Fieldhouse in Cleveland, Ohio.