Sarah Jessica Parker Gives a Sweet Shoutout to Former ‘Sex and the City’ Costar Cynthia Nixon on Her 50th Birthday

Carrie Bradshaw and Miranda Hobbes are still besties!

Sarah Jessica Parker took to Instagram on Saturday, April 9 to wish her former Sex and the City costar Cynthia Nixon a happy 50th birthday — and her kind words about the actress will melt your heart!

"Happy Birthday, my beloved colleague and friend, Cynthia Nixon. You are the same brilliant, inspiring and loyal friend I met all the way back in '78," Sarah Jessica wrote alongside the throwback black and white photo of Cynthia. "Have a wonderful birthday. Sending love today and always. Your, SJ xxx."

RELATED: Cynthia Nixon Talks Sex and the City 3 — See What She Said!

After meeting in the late-1970s, the duo costarred in the 1982 ABC TV movie My Body, My Child. Sarah Jessica, 51, and Cynthia later played Carrie and Miranda, respectively, on SATC, which ran from 1998 until 2004.

Click through the gallery below to see the cast of Sex and the City then and now!