Paula Abdul is going to be making an appearance in Sacha Baron Cohen's upcoming Bruno, in which he plays a flamboyantly gay something-or-other, only she just doesn't know it yet.

A source tells us Sacha Baron Cohen, playing a wildly gay Austrian TV reporter in "Bruno," conducted a wacky interview with the "American Idol" judge. "Paula was totally fooled. She bought into his character and to this day isn't aware she was fooled," the insider said. Abdul's rep had no immediate comment. (Source)

Wow, good one! Sacha Baron pulled one over on the most mentally challenged, closet substance-abusing famous person ever. Maybe for his next fake-documentary where he dupes unwitting civilians into humiliation with his "wacky" characters and hijinks, he can stick exclusively to nursing homes and schools for autistic kids. High fives!

Promo shots from Bruno. The hilarity is almost unfathomable: