Past photos of three 'Produce 101' contestants are causing all the rage online, as the girls look just as beautiful, if not more so, as they do now.

SEE ALSO: Lee Chan Won wins #1 + Performances from May 4th 'Show! Music Core'!

The three beauties whose photos were revealed are Pledis'�Joo Gyeol Kyung, MBK's Jung Chae Yeon, and Fantagio's Kim Do Yeon. You can see just how wonderfully these girls blossomed from being teens to lovely young ladies.�

Take a look at their metamorphoses for yourselves below!�

Zhou Jie Qiong:

Jung Chae Yeon:

Kim Do Yeon: