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Avalon are a female barbershop and a cappella quartet based in the UK. We are proud to be the LABBS 2018 Quartet Champions!

We all met through The University of Bristol Barbershop Singers (TUBBS, now known as The Bristones). With homes in South East London, Sutton, Reading and Bristol, we travel frequently to sing together for rehearsals, gigs and contests.




Boo de Bruin (tenor) is a Science Teacher and Deputy Head of Department. She studied a PhD in Genetics. She joined TUBBS in 2011, and quickly took on the role of Senior Musical Director for two years, including taking TUBBS to the 2013 European Convention as special guests. During that time she also competed with her ladies’ quartet BOMB Squad, who were the 2013 LABBS Novice champions. Boo is a qualified BABS Music Judge, a former LABBS Youth Co-ordinator and a former Chorus Manager, Section Leader and Deputy Director of Avon Harmony. She now sings tenor with Amersham A Cappella as well as singing with Reading Phoenix Choir.



Karen Lillywhite (baritone) is the youngest of the quartet, and joined TUBBS as a Music undergraduate in 2014. She is now a fully fledged Music graduate, as well as a talented flautist. She has also tried her hand at musical direction, directing the Upper Voices within TUBBS, and she is a theatrical director having tackled Pygmalion in her 2nd year. She is now baritone section leader with South Gloucestershire-based chorus, Fascinating Rhythm. She spends her working days as a receptionist for a data, creative and tech solutions company. Last but not least, she gives us all serious hair envy.



Helen Warner (lead) joined TUBBS in 2011. She won a Gold Mixed Quartet medal with Patchwork in 2013 and again in 2018 with Scramble (allowing her to share her swan song with both us and Scramble at LABBS 2019!) In 2014, she joined Region 31 chorus Viva Acappella and has thrown herself into chorus life; she has served on the Performance Team, Music Team & Board, was appointed as Assistant Music Director in November 2018, and with Viva won a UK Silver medal, a European Bronze medal and competed in Las Vegas! She is a qualified BABS Performance Judge. When not living & breathing barbershop, she is instead singing show tunes and Disney, reading Harry Potter, or working in the Office of the Director at a central London concert hall.



Sophie Wilson (bass) discovered barbershop before any of the others got a look in, when she joined TUBBS A Cappella in 2009. She formed a ladies’ quartet, Em & S, who competed in Region 31. She used to sing in another a cappella group, Sound, and features in their first music video! Since coming back into the barbershop fold, Sophie has also joined the LABBS Youth Chorus and is bass section leader. When Sophie isn’t singing all the very low notes, she is also a primary school teacher, and thoroughly enjoys looking after her small but hilarious charges.


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