sentences:  Her cabaret performances have been seen at festivals in the United Kingdom, Ireland and Australia.McGregor, who was born in Melbourne, studied music at the Australian National University before completing her Bachelor of Music at the Royal Northern College of Music in Manchester, England as a Peter Moores Scholar.Her first lead role was playing Polly Peachum in Jonathan Miller's production of "The Beggar's Opera" at Wilton's Music Hall in London.