Miami- A home-made tape could involve Spanish singer-songwriter Alejandro Sanz, Colombian pop diva Shakira [pictured] and her boyfriend, Antonio de la Rúa, in sexual intercourse together aboard a yacht owned by Sanz.

According to Internet portal Infobae.com, the tape is being held by the prosecutors evaluating the case against Carlos González and his wife, Sylvia Alzate, Sanz ex-employees who are accused of extortion against the artist.

This morning, People en Español released an article citing that both artists’ agencies have denied the existence of such a tape.

In a recent interview, Javier Ceriani, host of the radio show “Zona Cero”, said “there’s word of a private video taped in a yacht, which could involve Alejandro Sanz, Shakira and Antonio de la Rúa, but this material is in the prosecutors’ hands”.

He stated that, according to the prosecutor, “if some of this tape’s content would be made public, it could seriously threaten the singer and couple’s private life”.

Besides trying to commit extortion, González and Alzate also stole a yacht, a jet ski and a computer. In their declaration, they testified that Sanz would force them to work more hours than permitted by the United States’ laws.

By the end of 2005 there was a rumor that Shakira had ended her relationship with de la Rúa and initiated a romance with Sanz, around the same time they recorded their hit, ‘La Tortura’.

“The chemistry between them was blinding”, noted some sources, although some time later the singer was seen holding hands with her boyfriend de la Rúa.

By then, Sanz was recently divorced from Mexican model Jaydy Michel and was reportedly dating singer Lena.