Arabella studied Jazz, Musical Theatre and Opera at the London College of Music. She was invited by Eddie Harvey to sing at the Ealing Jazz Festival in 2003, marking her professional debut. She then completed her training at the Royal Academy of Music, where she appeared in the choir for Jason Robert Brown and Friends (New Players Theatre 2005). Whilst at the Academy, her theatrical roles included Maria in Nine and Thaisa in Shakespeare's Pericles. Since graduating, her theatrical credits include Coco in the workshops for Desperately Seeking Susan (Criterion Theatre 2006), Mother Maria in Casanova (Tristan Bates Theatre 2007), Townswoman/cover Luisa in Zorro the Musical (UK tour 2008), the Girl in The Nightingale and the Rose (Arcola Theatre 2008), Claudia in Nine (Rose and Crown 2008), the lead singer in A Celebration of Sondheim (Rose and Crown 2008) and The Jason Robert Brown Songbook (Rose and Crown 2009). This year Arabella has been busy filming for A Drop of the Pure in Barcelona (Fascination Pictures 2009), in which she played the role of Natalia and then putting on her own production of December Songs in May (Rose and Crown 2009).