Legendary Motorhead frontman Lemmy Kilmister apparently suffered another health setback during the band's set at the Wacken Open Air Festival in Germany tonight (Aug. 2). While no specific announcement was made, the band cut its set short after playing only six songs.

It's been a difficult year for Lemmy, as he was fitted with a defibrillator to correct his heart complications. More recently he suffered a hematoma (blood collecting outside of the blood vessels) and Motorhead were forced to cancel the majority of their tour dates. However, they stuck with their plan to play the Wacken Open Air Festival, and it appears that it may not have been a wise decision.

MetalTalk.net reports that Lemmy came out onstage and announced, "I've been ill recently -- I've come onstage to play some rock 'n' roll and f--- myself even more." However, he looked pale and sluggish during the show, taking a long time in between songs. It is also believed that Lemmy may have collapsed after the sixth song of the set, and an ambulance was seen leaving the venue, although it is not known whether Lemmy was inside the emergency vehicle.

One of the festival's organizers announced to the crowd that Motorhead's set was over and that he did not know what to say in a serious situation like this. However, in an update, MetalTalk.net reports that metal goddess Doro Pesch announced later during her own set that "Lemmy is doing fine," and was even joined onstage by Motorhead guitarist Phil Campbell for a guest appearance.

We will keep you posted on any further updates on Lemmy's health. In the meantime, we send our best wishes to the heavy metal legend.