Lady Gaga cancels concert after 'passing out

Singer Lady Gaga has apologised to fans after being forced to cancel a concert in Indiana due to ill health.

"Can't apologise enough for how sorry I am," she said, via micro-blogging site Twitter, revealing she had collapsed due to exhaustion and dehydration.

"An hour before the show I was feeling dizzy and having trouble breathing," posted the 23-year-old, renowned for her flamboyant stage performances.

The show at Purdue University will now take place on 26 January.

Lady Gaga - real name Stefani Joanne Angelina Germanotta - is scheduled to return to the stage on Saturday in Atlantic City, New Jersey.

I hope you can forgive me. I love my little monsters more than anything Lady Gaga

Last year she failed to appear as a support act at two Take That concerts in Manchester, citing ill health.

The singer tweeted that she had been "crying for hours" as a result of Thursday's cancellation.

"My stage has complicated mechanical elements," she said. "Everyone was concerned I'd be in danger during the 2hr show, since I had passed out earlier.

"I have performed with the flu, a cold [and] strep throat," she went on. "I would never cancel a show just based on discomfort.

"I hope you can forgive me. I love my little monsters more than anything, you are everything to me."

Lady Gaga - who recently topped the UK singles chart with Bad Romance - had the best-selling UK single of 2009 with Poker Face.

Her tour is due to hit the UK in Manchester on 18 February.

Jackson UK tribute gig in doubt

A Michael Jackson tribute concert in London next year is in doubt after the company organising the show dissolved.

The Austrian firm, World Awards Media, said the decision to wind-up was made in November.

No further details have been released but liquidator Martin Schneider said the company had lost the financial support of its main sponsor.

It is not yet known if Jackson's brother Jermaine will still put on the gig himself.

The concert was set to take place in June.

It was initially planned to take place outside Vienna's Schoenbrunn Palace in September, but it was moved London's Wembley Stadium after running into problems.

Organisers said too many performers were unable to commit because of scheduling conflicts.

The Austrian media was also accused of stirring up a negative atmosphere.

Former chief promoter Georg Kindel told the Austria Press Agency that he and Superfund founder Christian Baha - the majority owner of the now defunct company - split in October.

Neither Mr Kindel nor Mr Baha could be reached for comment.

Jackson died in June in Los Angeles aged 50.