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!)
Credit: Time & Life Pictures/Getty
Updated: Friday Oct 19, 2012 | 08:00 PM EDT
By: Alex Apatoff
More from PEOPLE
See More News
Before they go head-to-head at the CMA Awards, see their most fun and flirty moments on social media
3 of 12
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.
Copyright © 2013 Time Inc. All rights reserved. Reproduction in whole or in part without permission is prohibited.
In partnership with AOL