Katy Perry had a bit of fun as she playfully stuck out her tongue with KISS legend, Gene Simmons, on set of American Idol on Sunday. - Watch Gallery on Dailymail
The Fireworks songstress, 39 - who recently flaunted her cheeky ensemble while attending Coachella - posed with the rock singer during Sunday's episode where contestants performed songs from Rock & Roll Hall of Fame inductees.
During the special night, the official names for the 2024 Rock & Roll Hall of Fame were also announced, including Mary J. Blige, Cher and Dave Matthews Band.
Perry was seen excitedly posing with Simmons, 74 - who was a guest mentor - as they paused for a series of pictures in front of a light blue backdrop.
The mother-of-one was dazzling in a figure-hugging, turquoise dress that was made of a shimmering material. A matching shawl was draped down around her elbows for an elegant flare.
Gene - who is known for being the co-lead singer and bassist for rock band KISS - was dressed to impress in a classic black suit as well as a white shirt that was partially unfastened around the collar.
