Lady GaGa's dancers gave her a sex toy for her birthday.

The singer celebrated turning 28 backstage after her Roseland Ballroom show in New York City on Friday (28.03.14) and her dancers sang her 'Happy Birthday' before presenting her with gifts.

According to The New York Post newspaper, presents included a pink sex toy, a riding crop and a sexy lingerie set with heart cutouts in intimate areas.

Her friend Lady Starlight, who opened the gig, gave her a cake in the shape of a giant shoe that said 'G.U.Y.' - which is the name of her newest single.

Gaga was also joined by artist Jeff Koons and James Franco, who posted an image of the two of them on Instagram which he captioned ''HAPPY BDAY, GaGA!!!! (sic)''

Following the show the blonde beauty spent time with boyfriend Taylor Kinney.

She wrote on Twitter: ''Another amazing birthday moment. I love surprises! (sic)''

and attached an affectionate black and white image of the pair of them where he is leaning in to kiss her while she poses for the shot.

A source also overheard Starlight saying Gaga - real name Stefani Germanotta - would likely marry Kinney.

Gaga clearly had a fabulous birthday and thanked her fans for their wishes.

She tweeted: ''Thank you so much for all my beautiful birthday wishes. I feel like luckiest girl in the world this birthday. (sic)''