Fans noticed that EXO 's Tao was missing from the group's comeback performance with "" on this week's 'Music Bank' , andhas finally revealed an explanation.The agency stated on April 3,Afterwards, Tao has been unable to attend anything in EXO's schedule including this week's filming of 'Music Bank'.The EXO-M member injured his ankle back in February on's '', and it may be that his former injury is acting up again.Get well soon, Tao!