Singer Cher struggled to enjoy her $180 million (£120 million) three-year residency in Las Vegas because the shows were always attended by sedate audiences of elderly fans.
The Believe hitmaker staged almost 200 concerts at the Caesars Palace venue from 2008 to 2011 and admits she was initially "angry" when she realised the gigs would be a laidback affair.
She eventually vowed to put on a fiery performance every night regardless of the audience's reaction as for many fans it was their last chance to see her singing live.
Cher tells U.K. talk show host Graham Norton, "(It was) difficult. The audience is not allowed to stand up and they are very, very old and sometimes they had walkers and oxygen masks. I'm not kidding.
"I was angry for a long time and then finally I thought this might be the last concert they ever see and they are enjoying it in their own way. It's not my way and it didn't make me feel good but they were having a wonderful time."