Celebrity deaths are a unique thing, as they have a way of affecting both the people who actually knew the late star, as well as the generations of fans who were moved by their work. Case in point: Michelle Trachtenberg's death at 39, which definitely took the public by surprise. Celebrity tributes to Trachtenberg have been rolling in, and her Gossip Girl stars like Blake Lively and Chace Crawford (among others) have shared their love for her on social media.

Gossip Girl (which is streaming with a Netflix subscription) was a wildly popular show on The CW, and is also regularly re-watched via streaming services. Trachtenberg appeared as Regina Sparks in 28 episodes throughout its original run, so she got to work with the Gossip Girl cast quite a bit. Blake Lively posted a lengthy tribute on Instagram Story, check it out below:

How sweet is that? While Lively's legal battle with Justin Baldoni is raging on, she still took the time to honor Trachtenberg's talent and character through this post. And it sounds like she wish she could have gotten to reunite with her one more time before she passed.

Of course, Lively isn't the only Star of the original Gossip Girl that took to social media following Trachtenberg's surprise passing. Chace Crawford posted a carousel of photos on his Instagram, as well as a message from the heart. Check it out:

While Crawford has stayed busy as a scene-stealing member of The Boys (which is streaming with an Amazon Prime subscription) he definitely became a household name in Gossip Girl. And his post shows how much fun eh had connecting with the late Buffy actress on set.

Taylor Momsen played Jenny Humphrey in the original Gossip Girl series, and also took to social media after learning about Michelle Trachtenberg's death. She posted a photo of the late actress on IG Story with a short and sweet caption which reads: