After rising to fame with a string of hits in the early ’90s, British pop star Cathy Dennis stepped away from the spotlight. Instead, she became a hugely successful behind-the-scenes songwriter, co-writing Britney Spears’ “Toxic” and Katy Perry’s “I Kissed A Girl” along with songs by S Club 7, Kylie Minogue, Kelly Clarkson, David Guetta, the Jonas Brothers, Mark Ronson, and more.

Today, Dennis returned to the stage, performing her first public show in 20 years at London’s Mighty Hoopla festival in Brockwell Park. She performed her own “Just Another Dream,” “Too Many Walls,” and “Touch Me (All Night Long)” alongside songs she worked on: “I Kissed A Girl,” Galantis’ “Runaway (U & I),” Kylie Minogue’s “Can’t Get You Out Of My Head,” and “Toxic.” Watch below.

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Waited 30 years @cathydennisofficial @mightyhoopla

A post shared by ️‍‍‍ ‍♂️️‍♀️ (@gordonjohn39) on Jun 8, 2019 at 1:03pm PDT

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Many of you have suffered my rants about the importance of good pop music and my absolute obsession with Cathy Dennis. To see her first show in 20 years has made my little heart burst. What a fucking Queen. #cathydennis #mightyhoopla #toxic

A post shared by Cecil Lovegit (@they_call_me_cecil) on Jun 8, 2019 at 12:06pm PDT

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Cathy Dennis performing at Mighty Hoopla! 🏳️‍🌈🌈❤️ Can someone please record a video and post it for her US 🇺🇸 fans!!… You look slay 🔥🔥🔥 @cathydennisofficial ✨ ❤️ #cathydennis #london #pride #pridemonth #2019 #mightyhoopla #slay #pleasepostavideo!!!! #love #loveislove #lgbt #lgbtq #equality #justanotherdream #touchmeallnightlong #rebelheart

A post shared by Angel 👄 Stover 🍒❤ (@blondie_rebelheart__) on Jun 8, 2019 at 12:33pm PDT

Exciting news!!..I’ll be performing my first public show in 20 years at @mightyhoopla on June 8!! Get your tickets here https://t.co/QcEHpqlrJU and can’t wait to see you all…C x pic.twitter.com/22CwPPvLcj

— Cathy Dennis (@cathydennis) April 10, 2019