EXCLUSIVE: Jacob Tremblay tells us what it was like starring in Justin Bieber's 'Lonely' music video

Jacob Tremblay is undoubtedly one of Hollywood's most sought-after young stars. The Canadian actor has appeared in an Oscar-nominated film (2015's Room), box office hits (like Good Boys), and he's even voicing Flounder in the upcoming live-action Little Mermaid. But most recently, he's added another once in a lifetime role to his resume — playing Justin Bieber in a Justin Bieber music video — and he exclusively chatted with etalk all about it."It definitely feels really weird to say it, because it just sounds like it shouldn't be happening but, I am in a Justin Bieber music video, which is something I would have never seen coming," Jacob told etalk's Liz Trinnear, when they chatted over video call (watch above) just hours before the music video for "Lonely" premiered.After JB's team reached out with the opportunity ("which of course I said yes to"), Bieber hit up Jacob himself to break the ice, since the pair had never met. "I ended up getting a text message from Justin Bieber asking if I had any questions, which I did — I had a lot of questions. So we kind of organized that we would call each other some time, but we didn't really get an exact time, so he ended up calling me when I was in the grocery store... I was like, to my parents, 'I have to go outside because Justin Bieber's calling me.'"While Jacob wants to keep the details of that conversation between him and the Biebs, he does tell Liz that the singer "was super nice," especially after he revealed how nervous he was to be collaborating with one of the biggest recording artists on the planet. But why was Jacob, who's co-starred in multi-million dollar Hollywood productions alongside Oscar-winners like Julia Roberts, Brie Larson, and Natalie Portman nervous to shoot a music video? "I had actually never played a real person before," Jacob explained. "I've always played made-up characters, so I just really wanted to make sure that I had the feelings of the song and how Justin wanted me to feel. I really got to understand — it's a bit more of a serious song but I'm really excited for people to hear it, so they can see the story. It's really good."

And @JacobTremblay is so talented. It was emotional to see him play me from the outside looking in #LonelyVideo @itsbennyblanco https://t.co/GzsoyXIFrZ pic.twitter.com/U44ZiDaeXy

— Justin Bieber (@justinbieber) October 16, 2020

During a YouTube livestream Thursday night, Justin and the song's producer, Benny Blanco (who previously collaborated on 2015's "Love Yourself") called Jacob one of the best child actors they've ever seen. "The first time I watched him go through the segment... I legitimately lost it," Justin said of witnessing Jacob on set. "I was tearing up, like completely." But it wasn't all serious vibes while shooting "Lonely." Jacob says he got a selfie with Hailey Bieber (much to the envy of his older sister) and won a ping-pong match against Benny Blanco.