Whitney Houston Performs in Tokyo earlier this month

*There have been multiple reports in the past week calling Whitney Houston’s overseas tour performances a complete disaster and that she’s been asked to postpone some dates due to her “fragile condition.”

The latest complaints come from Australian fans, who apparently watched as the diva flubbed her way through a concert in Brisbane on Monday night. [Watch video below.]

Popeater is reporting that the 46-year-old “took a break after just two songs, brought her brother onstage to hit her high notes and slurped from a water bottle through a closing performance of ‘I Will Always Love You.'”

One concertgoer told the press outside: “She couldn’t entertain a dead rat.”

Monday’s performance at the Brisbane Entertainment Centre was the first of several Australian stops on Houston’s “Nothing But Love” comeback tour. On Tuesday (Feb. 23), concert promoter Andrew McManus defended the singer against the many ticket purchasers calling for a refund.

“It was not a train wreck,” McManus told Agence France-Presse of Houston’s performance. “She was hitting most of the notes; yes, her throat was a little croaky. Her health is fine, but she’s also not 22 years of age anymore.”

According to concert reviews cited by the AFP, Houston also appeared disoriented during the show, relied heavily upon backup singers and struggled to remember the names of her band members.

“This show was like watching a slow and painful death of a living legend,” a Courier-Mail reader wrote in. Watch for yourself below. [Story continues below.]

Last week, a rep for Whitney Houston denied rumors that the “Million Dollar Bill” singer is in ill health following poor performances in Japan.

According to the National Enquirer, Houston was urged to postpone upcoming live dates “after a string of health problems in recent months.” But her spokesperson called the article “rubbish” and “ridiculous.” In fact, she has added three more dates to her upcoming U.K. leg, which kicks off in Manchester on April 8.

Listen to Whitney’s performance of “I Will Always Love You” from her recent show in Tokyo below: