ALAN ALDA, PORTIA DE ROSSI, LAUREN GRAHAM, JESSE L. MARTIN, CONAN O'BRIEN AND THE BLUE MAN GROUP WILL PRESENT ON "THE 57TH ANNUAL PRIMETIME EMMY� AWARDS," HOSTED BY ELLEN DeGENERES, SEPT. 18 ON THE CBS TELEVISION NETWORK

Alan Alda, Portia De Rossi, Lauren Graham, Jesse L. Martin, Conan O'Brien and the Blue Man Group will present on THE 57TH ANNUAL PRIMETIME EMMY� AWARDS, hosted by Ellen DeGeneres live from the Shrine Auditorium in Los Angeles, Sunday, Sept. 18 (8:00-11:00 PM, live ET/delayed PT) on the CBS Television Network. They join previously announced presenters Mischa Barton, Rachel Bilson, Halle Berry, Zach Braff, Jon Cryer, Geena Davis, Patrick Dempsey, the cast of "Desperate Housewives," Charles S. Dutton, the cast of "Everybody Loves Raymond," Craig Ferguson, Matthew Fox, Adrian Grenier, Alyson Hannigan, Mariska Hargitay, Hugh Laurie, Jason Lee, Jennifer Love Hewitt, Debra Messing, Chris O'Donnell, William Petersen, Ellen Pompeo, Kyra Sedgwick, Charlie Sheen, Jimmy Smits, James Spader, Jon Stewart, Kiefer Sutherland, Quentin Tarantino and Sela Ward.

Alan Alda is a five-time Emmy Award winner ("M*A*S*H") and is currently nominated for "The West Wing." He is the only person to be honored by the Television Academy as a performer, writer and director. He has been nominated for 31 Emmy Awards and was inducted into the Television Hall of Fame in 1994. Alda has also won numerous other awards including six Golden Globe Awards, seven People's Choice Awards and three Director's Guild Awards. This year, he was nominated for an Academy Award and a Tony Award for "The Aviator" and "Glengarry Glen Ross," respectively.

Portia de Rossi currently stars in the Emmy Award-winning comedy series "Arrested Development," which is nominated again this year for Outstanding Comedy Series. Her other television credits include "Ally McBeal" and the television movie "America's Prince: The John F. Kennedy Jr. Story." Her feature film credits include "Cursed," "Who is Cletis Tout," "The Night We Called It a Day," "Scream 2," "Stigmata," "Women in Film" and "The Invisibles."

Lauren Graham currently stars as Lorelai Gilmore on the series "Gilmore Girls." For the role, she was nominated for a Golden Globe Award and two SAG Awards. Her other television credits include the series "M.Y.O.B," "Conrad Bloom," "Townies" and "Good Company." Her feature film credits include "The Pacifier," "The Moguls," "Bad Santa" and "Sweet November."

Jesse L. Martin currently stars in the Emmy Award-winning drama series "Law & Order." His other television credits include the series "Ally McBeal," "The X-Files," "413 Hope Street," "New York Undercover" and the television movie "Deep In My Heart." He was an original cast member of the Pulitzer Prize and Tony Award-winning Broadway musical "Rent" and can be seen in the upcoming film version.

Conan O'Brien currently hosts "Late Night with Conan O'Brien." "Late Night" was nominated for an Emmy Award for Outstanding Comedy or Variety Series in 2003. Since 1996, O'Brien and the "Late Night" writing team have consistently been nominated for an Emmy Award for Outstanding Writing in a Comedy or Variety Series. He and the "Late Night" writing staff have won four Writer's Guild Awards for Best Writing in a Comedy/Variety Series, including two consecutive wins in 2002 and 2003. O'Brien hosted "The 54th Annual Primetime Emmy Awards." His television writing credits include the series "The Simpsons" and "SNL."

Blue Man Group is best known for their exciting theatrical productions featuring three bald and blue characters and a band. They are currently featured in the storyline of the Emmy Award-nominated series "Arrested Development" and are launching a production in Las Vegas at The Venetian Hotel. Their other projects include a rock concert Complex Rock Tour, two CDs, "Audio" and "The Complex," and performances and storylines on "The Drew Carey Show" and the animated feature "Robots."

THE 57TH ANNUAL PRIMETIME EMMY AWARDS is being produced by Ken Ehrlich Productions and is presented by the Academy of Television Arts & Sciences. Ken Ehrlich is the executive producer; Michael B. Seligman and Renato Basile are the producers; Danette Herman is the coordinating producer and executive in charge of talent. Bruce Gowers will direct.