sunglasses hat scarf leggins coffee Christina Aguilera Matthew Rutler photos courtesy of MrPaparazzi

Christina Aguilera and rebound boyfriend Matthew Rutler were spotted returning to their London hotel after partying at Mahiki nightclub on Friday evening, this morning we spotted the duo leaving for Xtina's X Factor appearance.

Christina (who is also in the UK to promote Burlesque) will be dueting with finalist Rebecca Ferguson on the X Factor season finale tonight. That's one busy mama!