Michael Jackson (search) will not be coming to Berlin to attend a party for his father's 76th birthday, according to a statement posted on the pop singer's Web site.

Speculation had been swirling on whether Jackson, recently acquitted on child-molestation charges, would attend Joseph Jackson (search)'s birthday celebration, to be held Friday at the Estrel Hotel.

The statement said Jackson extended his "sincere regrets that he will be unable to attend the Victory/Birthday Party, hosted by his father, Mr. Joseph Jackson."

"However, Michael would like to wish his father a very heartfelt 'Happy Birthday' and he hopes that everyone attending the event has a truly wonderful time," the statement said.

Ralf Sesselberg, who is organizing the Jackson birthday bash, told reporters Thursday that LaToya and Janet Jackson had canceled their weekend trip to Berlin. He did not give a reason for their absence.

Jermaine and Tito Jackson have already checked in, Sesselberg said. Family and friends are staying at the Estrel Hotel.

The Jacksons are to be received by Mayor Klaus Wowereit Friday at city hall, where they will sign Berlin's guest book.