Sean Ono Lennon took the stage at Liverpool University on Saturday to officially open a 400-seat concert tall named after his famous mother Yoko Ono, 89. The 46-year-old, who's late father John Lennon was born in the city, told the audience at Yoko Ono Lennon Centre of his mother's 'great love for Liverpool'. Revealing that his mother cared about 'continuing my father's legacy' in the North of England.