What many may not realise is that is she is a trained jazz singer and her latest escapade – Cheek To Cheek, is a collaboration with crooning legend Tony Bennett. Very much in tune with the Twitter and Instagram epoch, Lady Gaga is also known for her monster remixes, her dance crossover, her R&B chops and her cool sass. She has sold 27 million albums since 2008 and a staggering 125 million singles worldwide, over 7 million of those to elated British customers. In some ways she is most reminiscent of a David Bowie figure – intriguingly alien yet utterly in charge of her muse. Gaga is a truly modern pop phenomenon, an artist of the highest calibre and intelligence she has few peers and practically no contemporary rivals. She made her debut to a storm of favourable applause and has lived up to the title, The Fame, with every move she makes.