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OTRC: Howard Stern slams Britney Spears and Jennifer Lopez

Howard Stern appears in a promotional undated photo for SIRIUS XM, which hosts his radio show. / Jennifer Lopez talks to OnTheRedCarpet.com in May 2011. / Britney Spears appears in an April 2012 photo from the Twister Dance video photo shoot. (Sirius.com / OTRC / Twister)

Howard Stern has never been shy about his opinions and now the "America's Got Talent" judge has slammed rival TV judges Jennifer Lopez and Britney Spears.

Stern had a long day of press, promoting his new position on the NBC reality competition series. He appeared on "Late Night with Jimmy Fallon on Wednesday evening and did the "Today" show and a press conference on Thursday. During his press tour, Stern promised to be compassionate and honest as a judge, something he believes is lacking on some of the other reality talent competitions.

"You know, I watch 'American Idol' sometimes, and those three judges, they don't have a word of criticism," Stern told Matt Lauer on the "Today" show. "And I think that's selfish. I think you owe it to the contestants to offer criticism."

He specifically addressed Lopez during a press conference later in the day, telling reporters, "J-Lo ? I don't understand what she's doing there... If I sit in a beautiful dress and just tell them they're wonderful, they're not going to get anywhere."

Stern also sounded off about Britney Spears, who has reportedly signed on to judge "The X-Factor" next season.

"I think it's a wonderful decision. Britney still thinks the earth is flat," Stern told reporters at an NBC press conference. "I don't anticipate great opinions from her. I think she's gonna sit there like J.Lo, 'Oh, you're wonderful, you're terrific. You think I can get a perfume endorsement out of this?'...I'll tune in to see what kind of train wreck she is."

Stern will replace Piers Morgan on "America's Got Talent" and will be a judge with Sharon Osbourne and Howie Mandel. The 58-year-old shock jock has already sparked the Parents TV Council to urge advertisers to pull out advertising for the show.

"Some guy sitting in his basement calling himself the Parent Television Council - I don't think there's more than 25 people in this thing, I think it's a money-raising racket," Stern said during the press conference. "They're entitled to their opinion, they just sound awfully foolish when they haven't seen the show."

Stern made headlines in April, after he unleashed a 35-minute expletive-filled rant on his Sirius XM satellite radio show after a New York judge tossed his $300 million lawsuit against the company and says he plans to appeal the case .

Stern has been a radio host since the 1970s and his show has aired on television. He moved to satellite radio following a dispute with terrestrial radio stations that had carried his syndicated show over alleged indecent programming, which led to Federal Communications Commission fines of $2.5 million. Stern is allowed to swear on his new show.

Stern will make his "America's Got Talent" debut on Monday. Do you think he will be a good contribution to the show? See a clip of Howard Stern's appearance on "Today" and vote in our poll below.

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