Rihanna, David Archuleta, Jason Derulo To Perform On 'American Idol'

Archuleta will reprise his breakout performance of 'Imagine' for Lennon/McCartney week.By Shawn Adler Rihanna Photo: Frank Micelotta/ Getty Images For the second time in three years, "American Idol" contestants are taking on the works of John Lennon and Paul McCartney. This time, they're doing it with a little help from their friends. Fox announced Monday (April 5) that this week's results program, airing Wednesday at 9 p.m. ET, will feature performances by Rihanna, singing "Te Amo"; ...

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