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Timberlake was romantically involved with Jessica Biel, from the show '7th Heaven' and the film 'Valentine's Day,' from 2007 until early 2011. They then reconciled and reportedly became engaged that December. As of March 2012, they have yet to confirm their engagement.
(Pictured: Jessica Biel appears in a still from her 2010 film 'Valentine's Day.')
( Photo / New Line Cinema)