A sex tape purportedly featuring Usher and his former wife Tameka Foster has sparked a bidding war, according to reports.

US celebrity website TMZ claims to have been given a short exert and two photos from the tape.

Sources said the tape may have been taken from Usher's car during a robbery in December 2009. At the time, the US R&B star reported thatmore than $1million worth of items had been stolen.

Meanwhile, in a statement issued to The YBF, Foster said: "Yes, I have had sex with my husband. Multiple times.

“Would I sanction a sextape being out? Absolutely not. I am a mother and entrepreneur. Sex tapes or pornography would not be my lane. I have no desire to be seen in that way."

Usher has yet to comment on the reports.

Usher and Foster (formerly Tameka Raymond) married in 2007 but divorced two years later.

(by Jason Gregory)