Heavy metal legends Motorhead are set to resume their US tour after canceling a number of dates over the past few weeks due to health issues suffered by their iconic frontman Lemmy Kilmister. A statement on the band's Facebook page explained that Lemmy had been suffering from a lung infection which was made worse by the high altitude in Denver and Salt Lake City. The condition has improved, the statement said, and Lemmy has gotten doctor's approval to resume touring. The band will pick up tonight with a scheduled performance in St. Louis and head to Indianapolis for a show on Wednesday. Click Here for a full rundown of Motorhead's remaining scheduled tour stops.