Dynamic Duo released their new song "Jam" on Nov. 16 and Sulli showed her full support for her boyfriend, Choiza, for the comeback.

On Nov. 17, the actress and model uploaded a screenshot of lyrics to Dynamic Duo's song "When Winter Comes," a track off the rap duo's eighth album GRAND CARNIVAL.

"I cried as soon as I heard this song," Sulli said expressing her feelings towards the track. "It's finally out."

Sulli then emphasized how much this song meant to her in another post.

"There was a time when I wanted to fall asleep and never wake up. My boyfriend showed me this song at that time and it was a big comfort to me. That's what I meant when I said I cried! It was purely as a fan of his that I posted the song."

As Sulli gives her ongoing support to her boyfriend and Gaeko, Choiza also expressed his delight to the kind words the actress has given to Dynamic Duo's comeback at a press conference for GRAND CARNIVAL.

"I'm so thankful to her. A lot of people around us monitor and listen to our songs before the album comes out but Sulli really liked that one particular song. I didn't think that song would shine as much in the album but I was happy that she liked it. I think that was a huge reason I had the courage to even include the song in the album, so I'm really thankful," said Choiza.