Steve Granitz/WireImage 1 / 14
Steve Granitz/WireImage 1 / 14

R&B star Lionel Richie owes $1.13 million in unpaid income tax stemming from 2010, according to official documents obtained by TMZ.

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The debt shouldn't put too much of a dent in Richie's bank balance -- the singer-songwriter is worth an estimated $200 million.

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