One Direction fans were delighted to see the late Liam Payne appear in the new trailer for Netflix’s Building the Band on Tuesday (June 24). Now, the late singer’s sister is weighing in with her thoughts on the forthcoming series.

In a post to her Instagram Stories on Tuesday, Payne’s sister Ruth Gibbins shared the trailer to the new show and explained why she was overcome with emotion while watching the clip. “I didn’t know whether to share this but it felt weird when I’ve raved about Liam’s work and achievements for the last 15 years,” she wrote. “Im heartbroken he never got to see how great he is in this show. He knew he had done a good job, we all told him this when we were at filming, but watching it back, wow!”

Gibbins continued, sharing a touching tribute to her brother. “You’re a star Liam, you always were and always will be,” she wrote. “There are a range of emotions I felt watching this, but one of the main ones ins immeasurable pride, always. Miss you more every day.”

In the trailer for the reality show, Payne offers sage advice to the show’s competitors, each of whom are tasked with forming six bands without getting to see one another until after they’ve created their group. “You have a lot of work to do, vocally,” he says to one group in the clip. “I need to feel that connection between you guys.”

The competition series, which is set to drop on Netflix July 9, wrapped filming two months before Payne died in October. After receiving the go-ahead from Payne’s family, the streamer announced in January that it would release the show as planned, and that the late singer’s family was “supportive of his inclusion” in the series.

Watch the full trailer for Netflix’s Building the Band below: