The London show will see Williams airing material from his new album 'Swings Both Ways'
Apparently the returning star will sing a version of 'Somewhere Only We Know' on the department store's Christmas campaign commercial
"It's not an earnest 'I'm a mum' record," says singer
The British popstar recently confirmed her musical comeback
Singer has also launched a new official website
Singer hints that new music will be coming 'soon'
Singer has been back in the studio with Naughty Boy and producer Greg Kurstin
Singer and rapper continue to exchange insults on Twitter after Banks called Allen's kids 'ugly' on Thursday (July 11)
The rapper also accused the singer of being addicted to cocaine and having a husband who looked like 'a thumb'
The singer is working on the follow-up to 'It's Not Me, It's You'