Justin Timberlake has had to cancel his one-off London show tonight (February 23) due to picking up the flu.The singer was due to play at the Roundhouse in Camden as a special show that he only announced a week ago, however, as he has confirmed in a video posted to social media, he is now unable to play the gig.“Hi everybody,” he said with a croaky voice in the Instagram post. “This is an unfortunate video to have to send out, but I’m sure you can tell from the sound of things that I am not going to be able to make it to the show on Friday, which I’m gutted about.”Oh no Justin Timberlake is sick and has to cancel Roundhouse show.