Steelhouse XV: 15 year celebrations marked in style by TWISTED SISTER

Steelhouse – the festival on the top of a Welsh mountain – will welcome American metal legends, TWISTED SISTER who will headline and close out the festival’s 15^th year celebrations on Sunday the 26^th July 2026 as they themselves celebrate a milestone: an incredible half a century as one of most notorious names in rock, having re-formed after a 10 year hiatus.

Also confirmed as part of a monster first announcement are Friday headliners, The Temperance Movement and Saturday night special guests, Reef. Alien Ant Farm, make their first trip to the Mountain with Tyketto, Von Hertzen Brothers, Darren Wharton’s Renegade, Mason Hill, Dan Byrne, Luke Morley, Anthony Gomes, Beaux Gris Gris & The Apocalypse, AMH, Parker Barrow, LN, King Kraken and Blue Nation all being added to the bill.

“We thought 15 years was worth celebrating in the biggest possible way”, say Steelhouse promoters, Max and Mikey. “And what better way to do that with one of the most iconic names in metal – TWISTED F***** SISTER!! To have them come and celebrate their milestone 50 years with us is an absolute and unbelievable honour.”

“When DEE SNIDER came and laid waste to Steelhouse a decade ago – and more than any other headliner, fundamentally got what we were trying to do as an independent rock festival – we hoped that perhaps he would one day return with the band he made his name with… In our 15^th year and their 50th, this is coming to pass…TWISTED SISTER on The Mountain is going to be HUGE!!!! 

We’re also extremely excited that The Temperance Movement headline SHXV’s opening night. Their own return has been a hugely welcome and successful one. Their shows last year were akin to going to church! They have history with us which goes back to both our and their early days. We’re so happy they’re making another trip up that road…Get your singing voices ready!”

2026 marks the 15^th iteration of Steelhouse, a now essential fixture on the summer festival map. Tickets are on sale now. For those wanting to spread the cost, a monthly payment plan is available on weekend arena tickets.  VIP upgrades are also available for those wanting VIP bar access, luxury facilities, acoustic sets and more!

The Festival at the top of the mountain boasts not only the best views of any UK rock event but one of the most passionate, friendly and loyal followings. With a reputation for not only bringing in the biggest and best names from the international world of Rock, Steelhouse also understands the role it can play in throwing open its prestigious stage to the best of the new breed of bands. It all adds up to a compelling mix of classic and cutting-edge rock, old and new.