Taylor Swift, SNL, Saturday Night Live

Will Heath/NBC

A new year poses infinite possibilities for change. For these stars, 2017 certainly held a lot of it. 

From launching a brand new career phase to shedding multiple dress sizes, stars from Taylor Swift to Mama June embraced the chance to make the year their own. For Aaron Carter, that meant sharing his sexuality with the world. For Kim Kardashian, the past 12 months was a chance to take life back on her own terms after a life-threatening end to 2016. 

In the world of Janet Jackson, first-time motherhood became a central focus as she parted ways with her husband and prepared to resume a life on stage. Meanwhile, Selena Gomezprivately faced a health battle and overcame it with the help of a beloved best friend. 

In anticipation of the year ahead of us, here's a look back at the stars who transformed before our eyes this year. In the words of Miley Cyrus, "Change is a thing you can count on."

Janet Jackson

AKM-GSI/XPOSURE; Getty Images

Selena Gomez, Transformations of 2017

BlayzenPhotos/AKM-GSI, AP Photo/ Joel C Ryan

Mama June, Baywatch, Before and After, EXCLUSIVE

Jason Winslow / Splash News, Splash News

Aaron Carter, Before, After, Transformation

Instagram

Jonah Hill, Transformations 2017

SMXRF/Star Max/GC Images. TheStewartofNY/GC Images.

Taylor Swift, Transformations, 2017

Alo Ceballos/GC Images. Tim Mosenfelder/Getty Images.

Kim Kardashian, Transformations, 2017

Marc Piasecki/GC Images. Donato Sardella/Getty Images for The Tot.

Miley Cyrus, 2017, Transformations

Raymond Hall/GC Images. Christopher Polk/MTV1617/Getty Images for MTV.

Which is your favorite transformation? Share with us in the comments below!

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