The Bay City Rollers are getting ready for their very first T In The Park.

And singer Les McKeown reckons the reformed Scottish group and their tartan trews are just as hungry for a taste of T as any young band.

“I think we feel the same about it as any young bands about T In The Park,” he says, ahead of their appearance a week on Saturday.

“We feel it’s an honour to be asked to do something like it, which is such a modern and upbeat event. It’s still a cutting edge festival that everyone wants to play at, so I couldn’t be happier that we were asked. We’ll have a couple of days’ rehearsal and hopefully we’ll put on a really rocking show.”

Les reunited with guitarists Stuart ‘Woody’ Wood and Alan Longmuir last year, bringing the classic line-up of the band back together after years apart, following a bitter falling out in the late 70s.

A string of celebratory gigs at the Barrowland sold out just before Christmas, and now they’re bringing Rollermania to Strathallan Castle, where they’ll perform alongside the likes of the Stone Roses, the 1975, Calvin Harris, Disclosure and the Red Hot Chili Peppers.

However Les admits there’s one aspect of festival life he’s not keen on – the weather!

“I’ve never been to T before, so that’s partly why I’m loving getting to go this year,” he enthuses.

“At night we’ll be in the King Tut’s tent just watching everyone else who’s on before and after us, but I’m going to get there a bit earlier and see who’s on around the whole festival – I don’t know what to expect but I’m looking forward to it.

“I played at Glastonbury about five or six years ago, and the first piece of advice I was given was to bring wellies. I thought, ‘what?’

“As soon as I was there I understood why they were needed – I was up to my knees in mud just trying to get to the stage. I thought to myself ‘people actually pay to go through this’? I must admit I won’t relish it if it’s wet and muddy, but hopefully it’ll be dry!”

The set will deliver all the hits, but the group are still working away on new material, with Les hoping for an autumn release. He’s also working on songs for his own project, with another album, The Lost Songs due out in August.

Juggling ideas hasn’t been a problem for the 57-year-old, though, who’s taken time to make sure the right tunes go to the right project.

“John McLaughlin, who’s managing the Rollers reunion, and a couple of others have a wee listen and we all decide what’s better suited to what,” he explains.

“It almost comes down to which one’s got a shuffle – the songs with sha na na’s are better suited for the Rollers, for example. If something sounds like it could have been the next step in the Bay City Rollers revolution, then we’ll put it on the new album, which will hopefully be out in October.”

It’s been an incredible comeback for the band, and Les admits those nights at the Barrowland last December will live long in the memory.

“Glasgow was something else,” he says.

“We might doing a bigger gig later this year in Glasgow, we’re trying to sort that out just now, but the Barrowland was such an atmosphere – it was just a sea of people having super fun.

“I was a bit apprehensive beforehand about what Alan and Woody would do, because I’m so used to working with my band and doing 150 gigs a year or so. We’ve got that down pat, and then you’re adding two people and hopefully it all works out OK.

“We wanted everybody to shine, and it was a fantastic performance, and everyone settled in really well.”

T In The Park tickets are on sale now.