Jessica Simpson at The 2006 CFDA Fashion Awards at the New York Public Library. New York City, USA - 05.06.06

Simpson's single is the title track from her new album AND THE BAND PLAYED ON, which is set to be released on 29 August (06).

According to website TMZ.com. "The single appears to bear a striking resemblance to Madonna's 1983 hit Holiday."

A representative for Simpson has dismissed the claims telling the website, "It is a fun summer single and comparing it to retro Madonna is flattering!"

'Holiday' by Madonna (Live 8 1985)