Directed by Hilary Campbell, a graduate of the Royal Academy of Music, the group was formed in 2003, while the singers were undergraduates at the University of York.
In 2005, Blossom Street filmed a medley of Christmas carols for BBC2, which was broadcast during the snooker final, and since then has performed nationwide and beyond. They sang to Prince Charles on ITV1 as part of his 60th birthday celebrations, and in 2009 gave their debut in the Queen Elizabeth Hall as part of the 'Voicelab' series. The group filmed for the 'TNT Show' on Channel 4 and a social media campaign for Clintons Cards, made adverts for sky+, HBO and Channel 5 and recorded two shows of the 'Sunday Half Hour' for BBC Radio 2. They broadcast quarterly for the Daily Service on BBC Radio 4.
On the concert platform, the group has performed at many of the major London venues including Wigmore Hall, St John's Smith Square and St James Piccadilly, and further afield at places like the Royal Palace, Madrid. Their CD, ‘Sleep, Holy Babe', was released in 2011, tracks from which featured on BBC Radio 3's ‘The Choir' and on Classic FM. They have performed on Radio 3's ‘In Tune' and their disc was announced as ‘Christmas CD of the Year 2011' on David Mellor's New CD Show, Classic FM. It also received several 5 star reviews. In 2013, their second disc, ‘Down by the Sea', a compilation of a cappella choral folk songs, many of which are premiere recordings, was released, again to critical acclaim