There are few celebrities so iconic that their style immediately comes to mind when mentioning their name -- Liza Minnelli (in her trademark sequins) is certainly one of them.

So we were shocked to see the 'Cabaret' singer looking almost unrecognizable at an event in New York on Wednesday night.

The 67-year-old posed for photos in an electric blue blouse and black leggings at the Hollywood Reporter's "35 Most Powerful People In Media" party, and, for once, her outfit wasn't the centre of attention -- rather, her taut, smooth face (emphasized by her slicked-back hair) was what raised eyebrows.

Liza has never openly admitted nor denied plastic surgery rumours, but there's been endless speculation over the singer's changing (or rather, barely-changing) appearance.

It seems like Liza's appearance has transformed dramatically and quite suddenly -- especially when compared to photos taken just under a year ago, in 2012.

liza minnelli plastic surgery

Take a look at Liza Minnelli's evolution for yourself.

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  • Liza Minnelli Sings at Paper Magazine's 25 Anniversary

    Legendary songbird Liza Minnelli sings "New York, New York" at Paper Magazine's 25th anniversary at New York Public Library.