He went on to present the weekend afternoon show and a two-hour new music programme on Thursday evenings, as well as being regular daytime cover.
He also presents regularly on BBC Radio 6 Music, deputising for Steve Lamacq, Lauren Laverne, Mary Anne Hobbs, Marc Riley and Gideon Coe.
Stephens also presented Bandit, a television show on Welsh-language channel S4C which showcased Welsh language music talent, until it was taken off air in December 2011.
Stephens is one of the founders of Welsh language label Am, whose releases include Mr Huw, Radio Luxembourg and Threatmantics.
It featured 21 up and coming artists including Gold Panda, Dinosaur Pile-Up, Banjo or Freakout and Young Fathers.
Since its inception in 2006 he has curated the Lake Stage at the Latitude Festival in Suffolk, inviting The 1975, Cate le Bon, The xx, Sam Smith, Catfish and the Bottlemen amongst others to play.
He has contributed to the Western Mail, Kruger Magazine, The Independent, The Mirror and NME, and guest-edited the Guardian music blog.
Sŵn (pronounced "soon") is the Welsh word for "sound", and the festival brings new bands, DJs and performers from Wales, the UK and elsewhere together with art and films in Cardiff city centre's venues.
In 2015 Stephens began co-presenting the RTÉ music show Other Voices, featuring performances from the Irish festival, alongside regular presenter Aidan Gillen, Annie Mac and MayKay.
[12] Stephens has also continued presenting television documentaries for S4C and the BBC, including The Story of Welsh Art (2021) and Wales: Music Nation (2022).