Whitney Houston performs at London's O2 Arena, Apr 25, 2010

*Here we go again.

In a headline appearing this morning in London’s Daily Mail, Whitney Houston was referred to as “bloated, bedraggled and out of tune” on the latest stop of her troubled “Nothing But Love” world tour.

Some 20,000 fans showed up at London’s O2 arena last night and greeted the diva with wild cheers, according to the newspaper. But, “once again the voice that had left her contemporaries reeling in its wake, was a former shadow of what it used to be,” wrote reviewer Georgina Littlejohn. [Story continues below.]

Whitney Houston performs at London's O2 Arena, Apr 25, 2010

The review continued:

After stumbling half-heartedly through her signature song “I Will Always Love You,” Houston, who has suffered her fair share of drug problems in the past, said: “She don’t want to come, my soprano friend.” She added: “Sometimes the old girl sings, but not tonight. I want to do it, but she doesn’t want to. … She’s getting a little … temperamental, even.”

She struggled further with another of her classic songs, this time cutting short “Greatest Love Of All,” only managing to pull of a couple of verses.

And during much of the set she paused and panted for breath between songs while her backing singers did a great job of carrying her with their melodies.

Her outfit also left a bit to be desired. She came on stage in tight leather trousers, a sequinned jacket that struggled to fasten at her middle and a bloated face.

Whitney did manage to stay on stage for the majority of the two-hour gig, her first of three at the Docklands venue. But fans were still unhappy, with some even demanding their money back.