The smitten Love Island couple could be seen snogging as they arrived at the popular music event.
Jessie, 26 and Will, 23, were snapped kissing in-between posing at the festival.
In the series of pictures, Jessie stunned in a tiny bikini top, a see-through crocheted shrug and stylish beige trousers.
The reality bombshell paired the festival-ready look with chic sunglasses, a radiant tan and her ultra-long locks in waves.
Meanwhile, Will opted for a classic white shirt, black shorts and white trainers.
The loved-up pair looked happier than ever as they beamed for the camera.
It comes after they enjoyed a sun-soaked getaway to Ibiza.
Jessie shared her excitement on Instagram, writing: “WE ARE IN IBIZAAAA! I can’t believe it, a girl from small Tasmania traveling Europe, living the dream. I have always wanted to do Europe summer, travelling around all the beautiful countries, and now I get to do it with my best friend, and I’m so grateful I can make these new memories with the boy I love.
“We went to old town Ibiza, and words can not describe how beautiful it was. It honestly felt like we where in a movie. It was everything I imagined and much more. Will planned everything, took me to some amazing places and we made memories that will last a lifetime. I just love him so much and love life with you. Couldn’t be happier.”
Their romantic break follows Will’s involvement in a shocking Love Island feud.
Livestock farmer Will revealed that he was removed from the show’s WhatsApp group.
Will, Tom Clare and Casey O’Gorman formed a close friendship during their time in the villa, but since returning to the UK, Will has barely been seen with the duo.
And earlier this month fans of the ITV2 were left scratching their heads after noticing Will had unfollowed his co-stars on Instagram.
He also unfollowed Ron Hall and show winner Kai Fagan.
Explaining why to Heat magazine, Will explained: “So they went out for dinner.
“I was invited but I couldn’t go. I live out of the city. I’m working on the farm and focusing on my girlfriend.
“They had their dinner and from what I saw on their stories had a couple of drinks, had a good time and then, later that night, Ron removed me from the group chat.”