Jermaine Jackson has confirmed that R&B stars Mary J. Blige, Akon and Chris Brown will be taking part in the Michael Jackson tribute concert at Vienna's Schönbrunn Palace on Sept. 26.

Commenting on recent media speculation that the acts were not able to commit to the event, Jackson said that he had already spoken with Blige's husband and made arrangements to fit in rehearsals and a second-half tribute appearance for the Grammy winner. On Brown, he said he was "working out something with his situation" back in L.A. but that he had already decided on performing either "Thriller" or "Man in the Mirror" at the tribute.

Natalie Cole, US 5, Angela Bassett and a host of Bollywood stars have also been confirmed, while Jackson said that talks were underway with Stevie Wonder, R.Kelly, Maroon 5 and Sister Sledge to be included on the bill.

Jackson revealed the news with Georg Kindel, organizer and executive producer of "The Tribute" and Michael Troy, director of communications for "The Tribute" today (Sept. 8) at the first of several high profile European press conferences, held at London's Kensington Palace.

Jackson said that Vienna was chosen to host the event because Michael had a strong European fanbase and he felt the focus was "for the fans to feel in touch with his legacy one more time." He added that the palace was chosen because Michael was "fascinated by castles, elegance, history and legends" and that the singer was "thrilled by its beauty" the several times he visited it while touring in Vienna.

Having invited the entire Jackson family and confirming the attendance of his mother Katherine, Jackson did not confirm or deny the possibility of an on-stage Jackson reunion. "You never know [what will happen] once the music hits them," he said.

Jackson also hinted that he would sing a 'duet' with Michael in the King of Pop's "final appearance," with video of Michael projected onto nearby walls, although was tight-lipped about further details.

Michael's original band will come together as the house band for the tribute, alongside the dancers scheduled to perform on the "This Is It" residency at London's O2 Arena that was originally scheduled to begin in July. The set list will include hits such as "Man in the Mirror," "Thriller," "Beat It" and "Heal the World."

A significant portion of the proceeds from "The Tribute" will be donated to charities including the Larry King Cardiac Foundation, Feed the Children, CliniClowns and Earth Care International Foundation. Superfund Investment group will present the event.

Declining to comment on the latest developments surrounding Michael's unexpected death on June 25, Jackson said, "If there was any foul play regarding the passing of my brother, it will be dealt with accordingly."

Overcome with emotion, however, his final words on the tribute were, "Michael didn't belong to just us any more, he belonged to the world."

Half of the 65,000 tickets have already been sold on pre-sale, as part of a staggered ticket release plan that aims to prevent ticket scalping and black market activity.

Alongside Jackson, Kindel and Troy, the behind-the-scenes team includes co-producer Ron Weisner, former manager of Michael Jackson and Madonna, and co-producer of the Women's World Awards 2006; director Phil Heyes, director of the BRIT Awards 2009 and MTV Los Premios 2008, amongst others; lighting designer Bob Dickinson, responsible for major Hollywood productions including the Oscars, Grammys and Tony Awards; sound designer Michael Abbott, who has worked with Santana, Diana Ross and Frank Zappa as well as major TV productions including "American Idol;" co-producer Tzvi Small, supervising producer of the Grammy Awards, BET Awards and Country Music Awards as well as executive producer at Paramount Pictures; talent executive Tisha Fein, previously involved with the Grammy Awards, NBC's "The Midnight Special" and Concert For Mandela, amongst others; and music consultant David Wild, Rolling Stone journalist and Emmy-nominated scriptwriter.