Katherine Jenkins gets in the festive spirit in floor-length red dress as she turns on St James"s lights

Christmas angel! Katherine Jenkins gets in the festive spirit in floor-length red dress as she turns on St James's lights

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UPDATED:

08:13 GMT, 21 November 2012

She stole the show in a purple gown at Monday night's Royal Variety Performance.

And now opera star Katherine Jenkins has done it again after stunning the crowds in St James' in a show-stopping, floor-length red dress.

The mezzo-soprano was the embodiment of Christmas as she turned on the central London lights on Tuesday night in front of an adoring crowd.

Feeling festive: Katherine Jenkins wows the crowd in a floor-length red dress as she turns on the St James's Christmas lights

Feeling festive: Katherine Jenkins wows the crowd in a floor-length red dress as she turns on the St James's Christmas lights

Looking her usual, glamorous self, Katherine made an impact in the floor-length chiffon gown, which highlighted her curvy figure.

The elegant dress, which had an unconventional neckline, certainly made the Welsh star stand-out as she took to the podium to flip the switch.

In her usual style, the 32-year-old wore her hair in blonde waves over her shoulder, reminiscent of an old 1950's movie star.

Flipping the switch: The opera singer looks radiant in red as she turns on the lights on Tuesday night

Flipping the switch: The opera singer looks radiant in red as she turns on the lights on Tuesday night

Stand-out: Katherine makes an impact in the knockout dress as she gets the crowd going

Stand-out: Katherine makes an impact in the knockout dress as she gets the crowd going

Katherine added a splash of red lipstick and heavy mascara to the look, matched with a pair of diamond earrings, completing her retro style.

After switching on the lights, the star wrote on Twitter:

'Have just turned on the Christmas lights in Jermyn Street…'

Old school glamour: The Welsh singer went all-out as she chatted to the crowd on Jermyn Street

Old school glamour: The Welsh singer went all-out as she chatted to the crowd on Jermyn Street

More modest: Katherine looked more conservative when she was at the ITV Studios earlier in the day

More modest: Katherine looked more conservative when she was at the ITV Studios earlier in the day

More modest: Katherine looked more conservative when she was at the ITV Studios earlier in the day

Christmas treat: The star looked just as festive on Monday night when she performed at the Royal Variety Performance

Christmas treat: The star looked just as festive on Monday night when she performed at the Royal Variety Performance

Earlier in the day, the musician had looked just as stylish but a little more conservative in a figure-hugging green shift dress for her appearance on Daybreak.

Katherine paired the modest dress with towering, stiletto ankle boots and a black jacket, keeping her hair wavy.

The star chatted about her performance the previous evening in front of The Queen where she sang for the fourth successive year.

Looking just as festive as she did when she switched on the St James's lights, the singer wore a purple, silk gown.

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