Country girl Taylor Swift goes to the dark side with dramatic dubstep performance as she tears off white gown while singing 'John Mayer track' at AMAs

PUBLISHED: 00:39 EST, 19 November 2012 | UPDATED: 05:10 EST, 19 November 2012

It was a busy night for Taylor Swift at the American Music Awards.

Just moments after the Red singer accepted the award for Best Country Female, she returned to the stage for an electrified, dubstep performance of her new single I Knew You Were Trouble.

Scroll down for video and a full list of winners...

A different side of her: Taylor Swift performs I Knew You Were Trouble at the 40th Anniversary American Music Awards

Everything has changed: Taylor appears to be shedding her good girl image

Taylor stunned the audience at the American Music Awards with her powerful performance of I Knew You Were Trouble, a song that is allegedly about her former flame John Mayer, and even changed outfits mid-song.

Swift, 22, won the Favourite Female Country Artist Award, beating out Miranda Lambert and Carrie Underwood for the prize.

She thanked her fans in her acceptance speech, saying: I'm stoked....I'm really, really happy right now and that's all because of you.'

Good girl gone bad: The singer then ripped off her dress to reveal a sexy red corset and fishnet tights

All white on the night: The song is allegedly about ex-boyfriend John Mayer

Red hot: Taylor Swift supposedly wrote many of the songs on the album about ex-boyfriends

Former flame: Taylor sang about her ex John Mayer on stage, seen here in 2008

The country singing sensation then gave fans a very different kind of show, seemingly trying to shed her good girl image as she vamped it up on stage.

More...

Wearing a beautiful white gown, suggestive of a wedding dress, Taylor descended an elegant staircase as she began her performance.

Swift change: The singer began her performance in a white tulle dress

Drama: Taylor is planning a show that dazzles people

Drama: Taylor planned a gloriously camp show that dazzled people with its self-indulgence

Women on top: Red has been number on in the charts for three weeks

Masked male dancers surrounded her in a masquerade ball theme but suddenly, in the middle of the number, the mood changed and Taylor ripped off her dress to reveal daring red corset and black tulle skirt underneath.

Strobes flashed as the dubstep beat dropped and The Valentine's Day actress kicked the dancers to the ground.

My word: Taylor was really trying to go the extra mile and put her good girl image to bed once and for all

Star studded: Nicki Minaj, Cyndi Lauper and Taylor Swift pose at the event

Really stoked:Taylor Swift accepts the award for favorite country female artist at the 40th American Music Awards

Taylor's latest album Red is number one on the record charts for the third week running and tickets for the American tour went on sale on Friday

The Everything Has Changed singer has promised fans that her Red tour concert will be one in which she outdoes herself and is going all out

'I like for it to be big -- as big as possible,' Swift said. 'If we can make a show that dazzles people more than the last tour, then I'll have done my job in the right way.'

Eye-catching outfit: Christina Aguilera performed in a star-spangled bodysuit

Heated performance: Gwen Stefani of No Doubt performed Looking Hot with the background up in flames

Woman of the night: Nicki was the runaway success and her performance of Freedom showed why

Woman of the night: Nicky was the runaway success and her performance of Freedom showed why

How does she Minaj it? Nicki took her schtick to even greater heights of ridiculousness with this stage setup****

VIDEO: And the winner is... highlights from the 2012 American Music Awards...

AMERICAN MUSIC AWARDS 2012: THE FULL LIST OF WINNERS

Artist of the year: Justin Bieber

New artist of the year: Carly Rae Jepsen

Pop/rock female artist: Katy Perry

Pop/rock male artist: Justin Bieber

Pop/rock band, duo or group: Maroon 5

Pop/rock album: Justin Bieber, Believe

Country female artist: Taylor Swift

Country male artist: Luke Bryan

Country band, duo or group: Lady Antebellum

Country album: Carrie Underwood, Blown Away

Rap/hip-hop artist: Nicki Minaj

Rap/hip-hop album: Nicki Minaj, Pink Friday: Roman Reloaded

Soul/R&B female artist: Beyonce

Soul/R&B male artist: Usher

Soul/R&B album: Rihanna, Talk That Talk

Alternative rock artist: Linkin Park

Adult contemporary artist: Adele

Latin artist: Shakira

Contemporary inspirational artist: tobyMac

Electronic dance music artist: David Guetta

Add your comments

Comments (21)

The comments below have not been moderated.

View all

I like how Gwen does not have to go half naked to sound good.

- Roseanne Barr , Hawaii, 19/11/2012 13:50

Click to rate Rating 47

All that flash and ridiculous costumes cover up lack of talent.

- Bill , Happy Valley, 19/11/2012 13:17

Click to rate Rating 25

What is it with these singers that they have to dress trashy, never saw Shirley Bassey or Barbra Streisand doing it and even Cher though outrageous didn't look trashy! - Denzil , Cornwall, 19/11/2012 09:48***********************************************************Cher didn't look trashy?

- Ella , Melbourne, 19/11/2012 12:52

Click to rate Rating 37

I'm just wondering whether, with all these terrible ex-boyfriends under her belt, Ms Swift has ever considered the problem might be her?!

- Josephine29 , Los Angeles, United States, 19/11/2012 12:38

Click to rate Rating 71

That black and red dress is nice.

- Bill , Manchester, 19/11/2012 12:06

Click to rate Rating 37

loks like a terrible Halloween party--they have no grace-

- anthony , Los Angeles, 19/11/2012 12:02

Click to rate Rating 14

I am glad she is branching out. I like her classic style only to a point. Sometimes the long skirts and dresses are a little too old for her. I pray that she finds a balance between dressing in a appealing sexier style but keeping it classy.. I think she can find the balance. The gold dress she wore on the red carpet looked lovely . There are many stars that find the right balance. But they are more that don't.

- SC Lady , NC, United Kingdom, 19/11/2012 11:44

Click to rate Rating 50

Most music is written about relationships and break-ups. Taylor's music is just literal experiences and not just 'oh this is a song about a boy and a girl' John Mayers song was 'Dear John' written years ago, so you can always believe what you read on here!

- Max , NCL, 19/11/2012 11:16

Click to rate Rating 27

Sorry Nicki but that dress looks 100% better on julie bowen!!

- godwk , wakefield, 19/11/2012 10:54

Click to rate Rating 17

I miss her curls

- Salster , Dublin, 19/11/2012 10:38

Click to rate Rating 47

The views expressed in the contents above are those of our users and do not necessarily reflect the views of MailOnline.