A source tells the Sun, ''A friend in LA recommended the hypnotherapist because Adele was getting so nervous about the gig. She has been rehearsing for the show with an orchestra, but all the preparation in the world isn't enough to keep her calm. She was so nervous before last year's Grammys that she was sick before going on stage. She doesn't want a repeat of that.'' Adele recently bought her mom a $950,000 London apartment