The promoters billed it as the concert of 2010. A one-off performance by a musical icon.
So, when tickets went on sale for Julie Andrews at London's O2 Arena the 14,000 seats were gone before you could say Edelweiss.
Fans paid between £50 and £106 each for the show.
And why not? She did once have a great voice. But sadly, that was then - and this is now.
Indignant fans have claimed that she can't sing anymore and that the concert was a waste of money.
Find out what fans of the Mary Poppins star who were there have been saying on BBC News...
And then there's Whitney Houston who seemed to have problems at her recent UK concerts.
One of the promoters of both shows told Watchdog that Whitney's performances were well received and added that everyone's opinion is individual, and naturally some members of the audience would enjoy it more than others.
You can make up your own mind with this clip from BBC News.
So what can you do if you go to a concert and aren't satisfied with the performance?
Sadly not much. Unless you were specifically promised something that wasn't delivered - like a particular song or routine - you can't demand your money back. As for the added costs - the parking, the programmes and the rest. There's no law limiting the prices that can be charged. Enough to make you stay at home?
The promoters also told us they were going ahead with Whitney's next two concerts in Manchester next month.
So, if you're going, you might want to send us a review...
How do you solve a problem at the arena?
So, when tickets went on sale for Julie Andrews at London's O2 Arena the 14,000 seats were gone before you could say Edelweiss.
Fans paid between £50 and £106 each for the show.
And why not? She did once have a great voice. But sadly, that was then - and this is now.
Indignant fans have claimed that she can't sing anymore and that the concert was a waste of money.
Find out what fans of the Mary Poppins star who were there have been saying on BBC News...
And then there's Whitney Houston who seemed to have problems at her recent UK concerts.
One of the promoters of both shows told Watchdog that Whitney's performances were well received and added that everyone's opinion is individual, and naturally some members of the audience would enjoy it more than others.
You can make up your own mind with this clip from BBC News.
So what can you do if you go to a concert and aren't satisfied with the performance?
Sadly not much. Unless you were specifically promised something that wasn't delivered - like a particular song or routine - you can't demand your money back. As for the added costs - the parking, the programmes and the rest. There's no law limiting the prices that can be charged. Enough to make you stay at home?
The promoters also told us they were going ahead with Whitney's next two concerts in Manchester next month.
So, if you're going, you might want to send us a review...
How do you solve a problem at the arena?