Girls’ Generation’s Taeyeon‘s solo concert this weekend was a star-studded affair!

On March 23 and 24, Taeyeon held an encore concert at the Jamsil Indoor Stadium in Seoul, and many of her SM Entertainment labelmates and other celebrity friends showed up to show their support.

Taeyeon’s bandmate YoonA shared a photo from the concert and wrote affectionately, “You managed not to cry and did a great job. You’re awesome.” She also shared an adorable photo of herself posing with Taeyeon backstage, adding in the hashtags, “I missed seeing SONE [Girls’ Generation’s official fan club] as well.”

SM Entertainment also posted a cute video of Taeyeon, YoonA, and SHINee’s Minho meeting up backstage before the second concert. The clip begins with Taeyeon introducing her two labelmates, before Minho jokingly pretends to be an awestruck Girls’ Generation’s fan. As the others crack up, Minho exclaims, “Wow, it’s Girls’ Generation’s Taeyeon and YoonA in real life, close up! They’re goddesses!”

After telling Taeyeon to do a good job during her last concert, YoonA playfully teases her, “Don’t cry.” Taeyeon replies, “I won’t cry,” and Minho jokes, “Cry! It’s okay to cry.”

Red Velvet’s Joy, Seulgi, and Irene also paid a visit to Taeyeon backstage. In a video posted on SM Entertainment’s official Twitter account, the Red Velvet members hold up banners and an official Girls’ Generation light stick as they exclaim, “Everyone, please show a lot of love for ‘Four Seasons‘ [Taeyeon’s new song]!”

Taeyeon chimes in, “Please show love for Red Velvet as well. Thank you!”

NCT’s Doyoung similarly showed his support by waving no less than two official light sticks as he met up with Taeyeon backstage. He exclaims, “Fighting!” and Taeyeon responds, “Thanks! Everyone, NCT’s Doyoung came!” Doyoung then tells her, “Please do a great job today,” and she cutely replies, “Thank you.”

Taeyeon also shared photos of herself posing with Doyoung on her own Instagram account, writing, “It’s Doyoung, to whom I’m so thankful that he came even during his busy schedule. I’m rooting for Doyoung’s vocals in the future. Let’s sing happily.”

Chungha, LABOUM’s Solbin, and former “Produce 101” contestant Hwang Soo Yeon also attended the concert and snapped a photo together with Taeyeon backstage. Taeyeon later posted the photo on her Instagram account and wrote, “Thank you so much, my junior artists. Let’s enjoy making music and have fun.”

Meanwhile, Taeyeon has been sweeping the domestic realtime music charts with her latest solo track “Four Seasons,” which she dropped on March 24 at 6 p.m. KST. Check out the music video here!