The pair will be joined by returning judge Nina Garcia, Elle magazine's Editor-in-Chief, designer Brandon Maxwell, and former Teen Vogue boss Elaine Welteroth for the new season, which will air in the U.S. next year (19).
Siriano, who shot to fame after winning "Project Runway"'s fourth season, confirmed the news on Wednesday, October 10, stating: "'Project Runway' has offered such wonderful opportunities for so many and I'm excited to take on this role as a mentor. I hope to guide and inspire the new talent on the rise."
Kloss added: "As someone who grew up watching 'Project Runway', I could not be more excited to host and produce a series that provides a platform to aspiring American designers as they pursue their creative and entrepreneurial dreams."
"I am equally as thrilled to work alongside an incredibly talented group of fashion innovators - Brandon Maxwell, Elaine Welteroth, Nina Garcia and Christian Siriano - to inspire, support and help guide these designers as they realize their visions and build everlasting brands and businesses."
"Project Runway"'s 17th season is already shooting.