Taylor Swift fans went wild tonight when eagle-eyed viewers of E!'s Emmy coverage reckoned they spotted her sneaking into the awards.

The 29-year-old singer -- or someone looking very much like her -- was seen gliding behind Giuliana Rancic in a pink dress.

Fans reacted with unbridled hysteria, with one tweeting: "I SWEAR I JUST SAW TAYLOR SWIFT WALK BY IN THE BACKGROUND OF THIS EMMY’S RED CARPET STREAM???"

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Taylor does have form for slipping into awards shows under the radar, skipping the Grammys in February this year to go to a Bafta after-party in London.

She also sneaked into the Cineworld in Leicester Square to support boyfriend Joe Alwyn at the London premiere of his new film Mary Queen Of Scots.

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The star avoided all the waiting photographers and got into the venue through a side door.

Another fan fuelled rumors Taylor was going to perform at the Emmys, tweeting: "I'm just outside the venue at the emmy's and I just heard taylor swift soundchecking style."

One other wrote: "Taylor swift is at the Emmys. Wow."

Fans were desperate to know if she really was there, writing: "Can someone please tell me if Taylor Swift is at the Emmys? I need to know if it's worth watching tonight 😅."

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The annual awards show is taking place at the Microsoft Theater in LA and just like the Oscars earlier this year, it does not have a host.

This article originally appeared in The Sun.