The soap star has been helped by a risqu� video

But sources at Valance's record label, WEA/London, told BBC News Online midweek sales have been well ahead of Sugababes.

The soap star's single has been propelled by a raunchy video in which she appears to be dancing naked.

The 19-year-old half-English Australian performer found fame as Felicity, nicknamed Flick, in the show.

Last week she spoke to CBBC Newsround Online about her desire to change careers.

"I did enjoy acting and being on Neighbours but singing is where my heart's always been.

Raunchy video

"I'm so lucky, not many people get up in the morning knowing that they are going to work to do the thing they love."

She added: "I wanted to make a raunchy video so that I would not be thought of as Flick from Neighbours."

Other contenders for the top of the charts are Moby's new single, and Tweet, Shakedown and Mary J Blige are also likely to do well.