‘ITS SHOWTIME BABY!’ Lady Gaga – wearing a bright red leotard – opted to celebrate turning 28 by kicking off her seven-night residency at the Roseland Ballroom in New York Friday

The outlandish pop diva brandished a rose-adorned keytar onstage the 52nd Street theatre, which will soon close its doors after 56 years.

The five-time Grammy winner is the final performer to take the stage at Roseland before its transformed into a 59-storey residential tower.

‘It’s basically the only room in the city I haven’t played,’ Gaga told The New Yorker, noting that Manhattan clubs are ‘where I learned to be bold.’

Everything’s coming up roses! The outlandish pop diva brandished a rose-adorned keytar onstage the 52nd Street theatre, which will soon close its doors after 56 years

Eye-catching: The G.U.Y. singer – born Stefani Germanotta – kept her trusty fishnets on throughout, but changed into several colourful bra-tops, sparkly panties, and high-heeled boots

‘Time to give Roseland the goodbye it deserves!’ The five-time Grammy winner is the final performer to take the stage at Roseland before its transformed into a 59-storey residential tower

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Hitting the road: Gaga’s seven-night Roseland residency ends April 7, and she’ll kick off her ARTPOP Ball Tour May 4 at Florida’s BB&T Center in Ft. Lauderdale

The G.U.Y. singer – born Stefani Germanotta – kept her trusty fishnets on throughout, but changed into several colourful bra-tops, sparkly panties, and high-heeled boots.

The Do What U Want singer also shared a backstage vanity-mirror selfie while getting made-up for the concert.

Outside the legendary venue, Gaga’s Little Monsters patiently waited in long lines wearing festive happy birthday tiaras and wigs.

‘It’s basically the only room in the city I haven’t played’: The Do What U Want singer also shared a backstage vanity-mirror selfie while getting made-up for the concert

Devoted fan base: The marquee to the legendary New York venue indicated that Gaga’s birthday concert was sold out

Cute: Outside, Gaga’s Little Monsters patiently waited in long lines wearing festive happy birthday tiaras and wigs

Look who’s a fan! Of Mice and Men star James Franco was spotted leaving Gaga’s birthday show

Like the top of a Christmas tree! The Born This Way hitmaker left her inaugural concert bearing angel wings and a tinsel-like leotard, looking similar to her Just Dance days

Pleased as punch: Gaga looked pretty confident about this particular look as she posed for her many admirers

After being ferried to Roseland in a rose-covered yellow cab, the Applause hitmaker emerged in her ‘birthday suit.’

Her 14 tattoos and nude thong were on full display under the ultra-sheer bodysuit, which preserved her modesty with artfully-placed roses.

Earlier Friday, Gaga played with proportions in a golden egg-shaped mini-dress and a bizarre wavy headpiece.

Put your paws up! After being ferried to Roseland in a rose-covered yellow cab, the Applause hitmaker emerged in her ‘birthday suit’

Lady in red: Her 14 tattoos and nude thong were on full display under the ultra-sheer bodysuit, which preserved her modesty with artfully-placed roses

Not so practical! Lady Gaga struggles in restrictive outfit   Loaded: 0%Progress: 0%0:00PreviousPlaySkipMute Current Time0:00/Duration Time1:03FullscreenNeed Text

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Drowning in fabric: Earlier Friday, Gaga played with proportions in a golden egg-shaped mini-dress and a bizarre wavy headpiece

Also at rehearsal, Mother Monster donned yet another ultra-sheer black bodysuit and massive white platform trainers.

The birthday starlet’s fourth and final streetwear for her special day was a curious white visor, massive shades, and a sporty blue dress.

Gaga’s seven-night Roseland residency ends April 7, and she’ll kick off her ARTPOP Ball Tour May 4 at Florida’s BB&T Center in Ft. Lauderdale.

Costume #3: Also at rehearsal, Mother Monster donned yet another ultra-sheer black bodysuit and massive white platform trainers

Lady Gaga steps out in bizarre visor and eye shield   Loaded: 0%Progress: 0%0:00PreviousPlaySkipMute Current Time0:00/Duration Time0:37FullscreenNeed Text

Costume #4! The birthday starlet’s fourth and final streetwear for her special day was a curious white visor, massive shades, and a sporty blue dress