According to onlookers at Sunday's show in Melbourne, Florida, Tiffany delivered a less than perfect performance. Her hit 'I Think We're Alone Now', an 1987 cover of a Tommy James and The Shondells track, had once sent her straight to the number one spot in the charts in the USA.However last week her proudest career moment is said to have turned into a PR disaster after those in the audience criticised the wobbly rendition.The 50-year-old appeared to challenge the way fans sang along to the classic, at one point screaming: "F**k you!"Then she corrected them defiantly: "This is my hit.
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