She grew up in the university town of St Andrew's ("beautiful but sheltered, a little bubble"), always knowing she had been adopted at birth. "I grew up knowing I could have had a million different lives. It makes your life mysterious and your imagination go wild." Her debut album Eye To The Telescope is the creative consequence of that inquiring imagination.
KT spent her childhood up hills and under canvas with her outward-bound parents. Music was never really part of the equation until her older brother discovered the joys of hair metal. "I would sit outside his room and record his music through his door."
Her first album was the Neverending Story soundtrack, but her favourite, reassuringly, is David Bowie's Hunky Dory. "Its sound really touched my love for songwriting and spacey stuff," she says. "I was really into sci-fi books as a kid. My dad is a physicist and he used to take my brothers and I into his lab when we were little. We played games with liquid nitrogen and Van de Graaff generators. He had the keys to the observatory at St. Andrew's University and he'd get us up in the middle of the night to show us Halley's Comet. That's partly why the album is called Eye To The Telescope."
The young active KT took up piano, then flute and gradually her singing voice developed its earthy individuality, "I'm pretty certain that I learned how to sing because someone gave me an Ella Fitzgerald tape - she was my singing teacher."
By her mid-teens, KT had started writing her own songs, "but I was just coming out with this schmaltzy love nonsense. It was a complete vomit of puppy love. But I thought I was rocking." At 16, she took up the guitar, teaching herself from a busker's book. Schmaltz was junked; a musical epiphany ensued.
Hungry for experiences and independence, she gained a scholarship to Kent School in Connecticut, New England and absorbed gigs by The Grateful Dead and 10,000 Maniacs. She also formed her first band, The Happy Campers, and played a host of informal gigs. "By the second week of playing an open mic slot I was their 'special guest from Scotland!'," she recalls.
Next stop on her personal odyssey was a music course at Royal Holloway College, where she tried and failed to form another band. "I managed to win Battle Of The Bands with one mandolin player! It was me and eleven goth bands and I won."
After vanquishing the goths, KT returned to St Andrews and became immersed in the grassroots scene which spawned The Beta Band and the Fence Collective, forming a group with Fence's Pip Dylan and honing her tastes with an ambrosial diet of James Brown, Lou Reed, Billie Holliday, Johnny Cash and PJ Harvey.
A few years and bands later, it was crunch time for Tunstall. She hit London again where, finally, things started to fall into place. Working relationships were forged, deals were secured. She began writing projects with Swedish songwriter/producer Martin Terefe and London-based Orcadian Jimmy Hogarth and London's Tommy D. With over a hundred songs in her pocket, set to work on her debut album with her new band and legendary U2/New Order/Happy Mondays producer Steve Osborne at the helm.
The lo-fi, visceral, boot-wielding approach was inspired by KT's recent conversion to the hiss and crackle of early blues. "On the whole, I'm a positive, skippity-la-la person but I love the dark side of music and I will always want to explore that. It's a positive-sounding album but there's stuff underneath for sure."
Since completing Eye To The Telescope, life has been a blur of gigs, first as support to Joss Stone, then a tour of Europe, singing with 'klezmer hip-hop' band Oi Va Voi, who ignited the Avalon Stage at Glastonbury.
"It was blazing sunshine and I went on in a turquoise neck muff, glamorous dress and muddy boots and just had the best gig, really emotional. I've had emails from people saying that they cried. They promised it wasn't the drugs."
Now KT is raring to channel all her infectious energies into her own music. "I'm not exactly sure what has driven me so hard," she says. "I've never questioned it. I've never had a back-up plan. I was never going to do anything else."
From artist's website