Michelle Obama's going out with a VERY expensive bang.
The First Lady's body was straight fire -- with all due respect -- in a form-fitting custom-made rose gold Versace gown during President Obama's final State Dinner Tuesday night.
Michelle and Barack were hosting the Italian Prime Minister and his wife -- so, maybe she went Versace just to make them feel at home. But more likely ... she just loved the couture.
The evening was topped off with a duet from Gwen Stefani and Blake Shelton.
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