A sex tape allegedly featuring Iggy Azalea is being touted for sale.

X-rated footage which is said to be of the 'Booty' rapper and an ex-boyfriend has been seen by Steve Hirsch, the CEO and founder of porn company Vivid.

According to TMZ, Hirsch has approached Iggy with a multi-million dollar offer to buy the footage in order to release it for sale.

The businessman believes it could be turned into a DVD which would outsell all previous celebrity sex tapes, such as 'Kim Kardashian Superstar' and 'One Night In Paris', which stars Paris Hilton and her ex-lover Rick Salomon.

However, Iggy's representatives have denied it is her in the video and have threatened to pursue legal action if it is released purporting to feature the Australian rapper.

As well as 'Kim Kardashian Superstar' - which showed the reality TV star having sex with her ex-boyfriend Ray J - Vivid have released a number of celebrity sex tapes over the years including 'The Tom Sizemore Sex Scandal' and 'Kendra Exposed', which features Hugh Hefner's ex-girlfriend Kendra Wilkinson.