Friends Cast Transformation Lead
Credit: Paramount/Shooting Star; Seth Poppel/Yearbook Library; Reisig & Taylor/NBC/NBCU Photo Bank

Jennifer Aniston, Courteney Cox, and Lisa Kudrow each left an indelible mark on American pop culture history with their turns as beloved Friends characters Rachel, Monica, and Phoebe. Tonight, the women reunite on NBC's Must See TV: An All-Star Tribute to James Burrows TV special, where they join their former co-stars Matt LeBlanc and David Schwimmer (unfortunately, Matthew Perry couldn't make it to the taping) to reminisce about the now-iconic show. The fivesome sit down with Andy Cohen and discuss what took place during "the best 10 years of our acting careers," as Aniston puts it.

As fans anticipate the Friends cast reunion, we're looking back at how the leading ladies' looks have evolved through the years.

Click here to see Aniston's changing looks, browse Cox's transformation from high school student to TV veteran, and check out Kudrow,​ then and now.

Catch the two-hour Must See TV: An All-Star Tribute to James Burrows special Sunday, Feb. 21, at 9 p.m. ET on NBC.