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After Tyler's latest admission about his habits in the bedroom, you may not look at the star in the same way. During a sit-down with Vanity Fair, Perry hooked himself up for one of their infamous lie detector tests. While taking the test, Perry admitted that he uses his "Madea voice" while having sex. "Sometimes. Once. On occasion - OK during sex," Tyler said. Would you ever take a lie detector test? Have you ever wanted to take a lie detector test to prove your innocence?