Heavy metal history is being made today, butt! 🤘🔥 Thousands of fans from across the UK and around the world are gathering at Knebworth Park for EddFest, Iron Maiden’s huge 50th Anniversary celebration, promising a full day of legendary music, unforgettable moments and a fitting tribute to one of Britain’s greatest ever metal bands.

Taking place on Saturday 11th July 2026, EddFest isn’t just another stop on the Run For Your Lives World Tour—it’s a festival dedicated entirely to the legacy of Iron Maiden.

🤘 A Line-Up Built for Metal Fans

Leading the charge are, of course, Iron Maiden, who will headline the event with what is expected to be a spectacular set celebrating five decades of iconic music.

Joining Maiden throughout the day are an incredible selection of special guests:

  • ⚡ The Darkness
  • ⚡ Airbourne
  • ⚡ The HU
  • ⚡ The Almighty

It’s a line-up packed with soaring vocals, thunderous riffs, twin guitar harmonies and enough energy to shake the grounds of Knebworth from start to finish.

☠️ More Than Just a Concert

Iron Maiden have gone all out to make EddFest feel like a true celebration rather than a standard festival.

Fans can spend the day exploring exclusive attractions including:

  • 🏛️ Infinite Dreams Museum Experience
  • 🍺 Eddie’s Ultimate Dive Bar
  • 🛍️ Eddie’s Emporium & Maidenville Market
  • 🎡 The Unfair Funfair
  • 🎸 Plus plenty of other Maiden-themed experiences across the festival site.

Whether you’re hunting exclusive merchandise, grabbing a Trooper beer or diving into the band’s incredible history, there’s plenty to keep fans entertained between sets.

🎸 Fifty Years of Iron Maiden

It’s hard to believe Iron Maiden have now been flying the flag for heavy metal for half a century.

Formed back in 1975, the East London legends have become one of the most successful and influential metal bands of all time. With countless classic albums, sold-out world tours and headline appearances across the globe, Maiden have inspired generations of musicians while building one of the most passionate fanbases in music.

From The Number of the Beast and Powerslave to Seventh Son of a Seventh Son, Brave New World and beyond, the band’s catalogue has become essential listening for rock and metal fans everywhere.

🏰 The Perfect Venue

Few venues carry the history of Knebworth Park.

The legendary site has welcomed some of the biggest names in rock history, including Led Zeppelin, Queen, Oasis, Pink Floyd and many more.

Today, it’s Iron Maiden’s turn to write another unforgettable chapter.

With Eddie towering over the stage, thousands of horns raised in the air and Bruce Dickinson’s unmistakable battle cry echoing across the fields, the atmosphere promises to be nothing short of electric.

🔥 The Riff Report Says…

There are anniversaries… and then there’s this.

Iron Maiden reaching 50 years is a monumental achievement, and EddFest feels like the perfect way to celebrate one of the greatest heavy metal bands the world has ever seen.

An incredible line-up, exclusive attractions, one of the UK’s most iconic venues and thousands of devoted fans all coming together for one purpose—celebrating the legacy of Maiden.

If you’re lucky enough to be at Knebworth today, enjoy every riff, every singalong and every moment.

Because festivals like this don’t come around very often.

Happy 50th Anniversary, Iron Maiden. Up the Irons! 🤘🔥

Will you be rocking out at EddFest today? Let us know your favourite performances, photos and festival stories—we’d love to hear from you here at The Riff Report! 🎸🇬🇧