The Pitch Perfect 2 star has teamed up with plus size clothing label Torrid to create the capsule holiday collection which is set to go on sale in store and online from November.
Items from the 25-piece limited edition line - which includes cute koala-print tees and quirky microphone shaped accessories - will all retail under US$130 (RM466).
The 29-year-old actress - who is known for her curvaceous figure - was keen to design the collection after struggling to find "cool" and "affordable" plus-size clothing herself.
She said: "I've had a torrid affair with buying clothes all my life.
"I've never really felt like there's a brand out there in the plus-size world that is creating cool stuff, that fits well and is good quality yet affordable. So it was awesome to team with Torrid, who I think are doing such a great job in making plus-size fashion relevant and dope.
"I've been loving designing the clothes for my capsule collection. I've been putting my unique style and personal loves into the clothing and literally can't wait for the collection to launch!"
Rebel recently confessed she was encouraged to try her hand at design after realising her fashion choices had started having an impact on her fans.
She told Elle magazine: "It's becoming important for me. I saw a lot of girls were beginning to notice what I wear and I feel a kind of responsibility, because there aren't any women in Hollywood my size and age."Read more here:www.marieaustralia.com/short-formal-dresses | www.marieaustralia.com/formal-dresses-2015