Whitney Houston made a career comeback at the Fashion Rocks Show in London on Thursday night. The songbird was there to make a speech about the good work done by the British Prince’s Trust. She walked on stage at the finale to a standing ovation, and in a reference to her most famous song she told the audience: ‘I will always love you – very much.’ The 44-year-old introduced the final catwalk show of the night by Swarovski – with Patti La Belle and Sugababes performing Lady Marmalade.