christina aguilera weight loss american music awards transformation 2012 2013 See Christina Aguilera's transformation from AMAs 2012 to AMAs 2013“Voice” coach and songstress Christina Aguilera has had a pretty good last 12 months, huh? Her transformation from the 2012 American Music Awards (above, right) to the 2013 American Music Awards (above, left) is … nothing short of amazing.

Not only has the pint-sized singer slimmed down, but she’s rocking a much more elegant look. We also love, love, love her 2013 AMAs performance of “Say Something” with A Great Big World. It too is in sharp contrast to her 2012 AMAs performance of a “Lotus” medley and “Feel This Moment” with Pitbull.

Not that those performances were bad, per se, but her “Say Something” was a highlight of the night for us.

It’s terrific how slim and trim she looks while not looking unhealthy. Whatever you’re doing, XTina, keep it up.

Posted by:Andrea Reiher

TV critic by way of law school, Andrea Reiher enjoys everything from highbrow drama to clever comedy to the best reality TV has to offer. Her TV heroes include CJ Cregg, Spencer Hastings, Diane Lockhart, Juliet O'Hara and Buffy Summers. TV words to live by: "I'm a slayer, ask me how."