Frightened Rabbit are one of the most exciting prospects in Scottish music just now and, having just completed a gruelling US tour - including industry favourite South by Southwest (SXSW) festival in Texas - they packed out the T Break tent on Sunday night to mark a welcome return home.

It was one of the biggest sets of the weekend in the venue aimed at showcasing new and unsigned bands. How Frightened Rabbit blagged their way onto the stage is something of a mystery, given that they are neither new nor unsigned, but after winning the attention of festival organisers during their spell in Austin, they proved a worthy booking and gave one of the performances of the day. Shame on you, Amy Winehouse, that you were out-performed by a couple of guys from the Borders.

At the heart of the band are Selkirk brothers Scott and Grant Hutchison who might just be two of the nicest guys you'll come across at T in the Park. Talking to them it's funny to watch them start and finish each other's sentences so seamlessly and on stage their music is equally fluid and engaging.

Making up the four-piece were David Kennedy and Andy Monaghan and together the band delivered a powerfully energetic set matched only by the enthusiasm of a sea of fans who had snubbed the Kings of Leon to pack out the T Break tent. And they were well rewarded.

"That set was incredible," said Scott backstage. "We didn't know what to expect - we were hoping a bunch of people would come out but it totally surpassed our expectations. The crowd singing along and knowing the words was really amazing and we haven't played in Scotland for so long so we weren't quite sure how we'd go down - so it's good confirmation that we're doing alright I guess."

"It was probably close to one of the best gigs we've ever done," added drummer Grant. "Not from a playing point of view, but just the reaction was phenomenal. I was completely speechless afterwards."

Clearly tired from months of touring and a SXSW schedule that included two or three gigs a day, the Selkirk pair - now based in Glasgow - are looking forward to a couple of weeks off. But their continuing success is a testament to their hard work and after just a short break it will be back on the road for the band.

Grant explained: "The thing that other people who haven't done it before don't understand is that when we travel, we drive ourselves, we load all the gear - it's not like some rock and roll lifestyle where you're staying in five-star hotels and getting gorgeous women all the time. You're working for the most part and any day off we had in the US was because we had a 15 or 16 hour drive to get to the next gig."

"You have to earn your stripes," lead singer Scott continued. "We don't believe the really quick rise to success is a particularly healthy one. You need good foundations. We've dealt with awful times and awful shows and now we know how to deal with it and that's given us a strong foundation."

"It does seem like playing in covers bands at high school is a far cry from this but you know people like music in the Borders. You can't dismiss it as a place where no one's up to speed. These days it's a lot easier to find new music. Before it was just Spence's music shop in Hawick and Woolworths in Gala and that was pretty much it - that's where you'd buy your music. But now there's a lot of good music around and the Borders is getting hip."