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It’s British Week on American Idol this week. And while you can expect the remaining five finalists to be singing songs made famous by artists from across the pond, they’ll be mentored by a musician who is decidedly all-American. EW has learned that Steven Van Zandt, the guitarist from Bruce Springsteen’s E Street Band, will be the guest mentor on Idol tomorrow. Little Steven, as he is affectionately known, will be lending Jimmy Iovine a hand as the Idol mentor coaches the kids on English rock and pop on the May 2 performance show (Fox 8 p.m.).

Little Steven has a relationship with Jimmy that goes back to the 70’s when the Interscope chairmen was a recording engineer on Springsteen’s early recordings. As far as Idol goes, the guitarist and his wife, Maureen, are unabashed fans. When two Idol alums — season 8 winner, Kris Allen, and season 7 alum, Michael Johns — attended the Springsteen concert in Los Angeles on Friday, she tweeted a photo with the caption, “Handsome devils waiting for Bruce.”

Maureen spilled the beans earlier that same day when she tweeted a photo of Little Steven sitting at a piano with some musicians. When fans inquired about the photo, Maureen revealed it was an Idol mentoring session. “He loves to help young people,” Maureen said of Little Steven’s afternoon working with the Idols, “So he had fun.”

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