Hundreds complain following Lady Gaga's raunchy X Factor performance

But the star could be disappointed to know she hasn't eclipsed the thousands of complaints that flooded in when Rihanna performed

Lady Gaga performs on The X Factor Sunday live results show (Rex Features)

Lady Gaga's performance on The X Factor has generated more than 100 complaints to Ofcom.

The TV watchdog is now assessing whether to launch a full investigation into the show, which aired the raunchy clip prior to the 9pm watershed.

In the performance, Lady Gaga donned a flesh-coloured bikini and writhed around on top of a piano as she sang her new singles "Venus" and "Do What U Want" from her album ARTPOP.

Ofcom said it received more than 100 complaints, while ITV has received a further 60.

But Gaga still has some way to go eclipse the 2,868 complaints generated by Rihanna and Christina Aguilera for their performances at the 2010 X Factor final, which were judged by Ofcom to be at "the very margin of acceptability".

Vivienne Pattison, director of Mediawatch UK, told the Daily Mail: "The X Factor are doing everything they can to keep their ratings up. I don't think things like this should be in TV. It is damaging to the children who watch the show."

An ITV spokesman defended the star's performance, saying: "We do not believe Lady Gaga's performance was inappropriate for the family audience of The X Factor Results show, which has an established tradition of featuring performances from the biggest music stars of the moment. Lady Gaga is well known for her highly individual performance style."