Aerosmith frontman Steven Tyler has been airlifted to hospital after falling off stage during a concert.

空中铁匠乐队成员Steven Tyler在演唱会上从舞台上跌落，被空运至医院。

Aerosmith's tour has been plagued by health problems

The 61-year-old fell while dancing to entertain the crowd, after the sound system failed at the Sturgis Motorcycle Rally¹ in South Dakota.

Tyler was on a catwalk when he fell backward onto a couple of fans, said Mike Sanborn of the Buffalo² Chip Campground, which hosted the event.

The singer was in "good spirits" as he left the grounds, Sanborn said.

"He was good natured about it," he told the Associated Press news agency. "He was talking and joking with the physician（内科医生）."

The singer suffered neck and shoulder injuries, Sanborn added, but it was not immediately clear how serious they were.

About 30 minutes after the accident, guitarist Joe Perry came out to tell the crowd that the remainder³ of the show had been cancelled.

Tyler's daughter, actress Mia Tyler, later informed fans: "Just got the news that my dad is okay. Thank you all for your wonderful prayers and positive energy!"

Prayers

Journalist Matt Becker was at the concert, and said Tyler's fall looked "very rough".

"They were playing Love In An Elevator and the main sound completely blew out," he told the BBC News website.

"No-one in the crowd could hear them any more and, after about a minute, Steven Tyler came out on a catwalk and started dancing."

"It had rained about an hour earlier and they had tried to keep the stage dry, but during a spin Steven lost his balance and fell towards the audience into an area that was barricaded⁴ off - and there was no-one there to catch him.

"There is a possibility that he smacked⁵ his head off the rail that separated him from the crowd, which might have been why he was airlifted（空运） to hospital."

"There was a little confusion⁶ in the audience, but people were very understanding."

Health issues

Aerosmith's recent concert appearances have been plagued（折磨，苦恼） by health problems.

Seven shows were postponed⁷ this summer after Tyler injured his leg at a gig in June, while bassist（低音歌手） Tom Hamilton pulled out of several dates as he recovered from "non-invasive" surgery.

Guitarist Brad Whitford also missed some concerts after hurting his head, and the band cancelled a gig in Venezuela in January when guitarist Joe Perry developed "unforeseen complications⁸" with his replacement⁹ knee.