Slide to see who's changed the most (hello, Blake Shelton's mullet) and who's hardly changed at all (Faith Hill, what's your secret!)
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Updated: Friday Oct 19, 2012 | 08:00 PM EDT
By: Alex Apatoff
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Married since 1996, country's sexiest couple has been burning up red carpets like spontaneous combustion. Twelve years after wowing the 2000 Grammys crowd, the pair took Sin City by storm to announce a series of Soul2Soul concerts.
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