Los Angeles, California - Blake Lively's nostalgic Instagram post featuring her Gossip Girl co-stars has everyone in their feels!

The 38-year-old star took a reprieve from her legal battle against Justin Baldoni with a look at her breakthrough role as Serena van der Woodsen on the CW hit series.

Lively shared a photo dump on Sunday to mark the show's 18th anniversary, revealing some rare pics with her co-stars Leighton Meester, Penn Badgley, Chace Crawford, and Ed Westwick.

She gushed in the caption, "the summer gossip girl turned 18. This show was my college. It was my education, my social life, my hardwork, my late nights and early mornings, my teacher."

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The Another Simple Favor actor added, "So many memories. What. A. Decade. What a University."

Lively's post included an image with the Badgley, whom she dated from 2007 to 2010, plus the late Michelle Trachtenberg, who played Serena's frenemy Georgina Sparks.

The Age of Adeline star's post comes after Baldoni recently added Diddy's lawyer, Alexandra Shapiro, to his defense team as he and Lively prepare to testify in court next year.