Katy Perry showed the contestants just how to put on a show when she performed on The Voice of Germany on Friday. The Fireworks singer belted out her new hit Unconditionally while wearing a very frilly dress complete with LED lights. Her show-stopping look made sure she was the centre of attention during the atmospheric, white-themed performance. The 29-year-old’s dress lit-up as she paraded around on stage while her troupe of dancers cut a ghostly figure behind.

The number resembled a voluminous bridal gown, complete with flared skirt, however the star’s slim pins could be seen due to the dipped-hem design. She finished off her look in equally glitzy style with a pair of sparkly, silver heels, while her hair was styled in loose waves.

The wedding theme continued with a matching, floral garland, which contrasted perfectly against Katy’s black locks. The set mirrored the song’s video which sees the US star sing in a white lace dress as snow falls around her. She later changed into a tartan miniskirt and skimpy black top, as she sang on top of a perspex box as male dances writhed around inside. Her bra could be seen underneath, while a quilted red handbag sat on front of her skirt as she danced alongside her scantily-clad performers.

The star’s hair was also adjusted to match her new alter-ego, which was given a messy, deadlocked feel. Her transformation was completed with a black choker, biker-style boots and a pair of dangle earrings. Katy - was is dating fellow singer John Mayer - was in London last week when she was spotted leaving the ITV studios in a much more practical look. Sporting a knitted Argyle mini-dress, that did little to accentuate her shapely curves, the hit-maker opted for a trench over the top, while wearing matching Gucci loafers.

The singer was enjoying a prolonged stay in the capital following her appearance at the Jingle Bell Ball on Sunday, with a live performance on The X Factor final this weekend expected to be her last before she flies back to America for Christmas.

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