The singer said the process helps her improve any weak areas in her routines so that she continues to get better with experience.
In an interview with Stephen Fry for Britain's Financial Times, she said: 'I watched the Graham Norton [TV show] performance when it aired. And I watched it over and over and over and over and over. And I looked at all the parts that I liked and all the parts that I didn't like ... and I said, 'OK, maybe this part, if your breath control was different, and here, maybe you should try this step'. I study everything that I do to become better all the time at my craft. The beauty for me about being an artist is that the dream will never die, because I'm not obsessed with material things and don't care about the money and don't care about the attention of the public, but only the love of my fans, so for me it's about how much more devoted, how much better an artist can I become.'