Blake Lively addressed the passing of her "Gossip Girl" costar Michelle Trachtenberg after a long social media silence.

Blake Lively broke her social media silence on Wednesday to pay tribute to her late “Gossip Girl” co-star Michelle Trachtenberg, who died Wednesday morning at 39. In an Instagram Story, Lively remembered Trachtenberg as a “fiercly loyal” and “kind person, through and through.”

Friends and costars of Michelle Trachtenberg are remembering the actress with touching tributes after her passing on Wednesday at the age of 39.

Gossip Girl star, Michelle Trachtenberg passed away on February 26, 2025 — and Blake Lively just paid tribute to her former co-star. Since the tragic news dropped, Michelle's friends continue to pour out support and love,

Blake Lively honored her former “Gossip Girl” co-star Michelle Trachtenberg following news of her death. Trachtenberg, who portrayed Georgina Sparks on the CW show, was found dead at the age of 29 on Feb. 26 .

Sarah Michelle Gellar, Taylor Momsen and Blake Lively are among those paying tribute to Michelle Trachtenberg, who died Wednesday.

Blake Lively, Sarah Michelle Gellar and others who worked with Michelle Trachtenberg remembered the “loving” and “electric” actress, who was found dead in her NYC apartment

Blake Lively has taken to Instagram to issue an emotional tribute to her Gossip Girl co-star Michelle Trachtenberg after she was found dead aged 39.

Lively shared a photo of the day she met Trachtenberg, writing, "The world lost a deeply sensitive and good person"

Blake Lively, who co-starred with Michelle Trachtenberg on the teen drama "Gossip Girl," paid tribute to the late actress on Wednesday.