Kate Upton was announced as the new face of Express in March and now the 22-year-old launched the new fall jeans collection.
"Exciting to start a big day with @ExpressLife!" she tweeted on July 8, along with the hashtag "#expressjeans."
The Florida native attended the Express Time Square flagship store launch in New York sporting denim jeans and a zebra-print button down. Both pieces will appear in the collection.
The Sports Illustrated model is now the first celebrity spokesperson to represent the brand in the last ten years.
"The new partnership highlights the mutual admiration between Express and Kate and is the culmination of two iconic American establishments coming together," chairman and chief executive officer of Express Michael Weiss said in a statement.
Upton also explained her appreciation for the popular clothing brand in a new interview with Elle magazine. "Well I'm really excited about working with Express because I'm familiar with the brand," she said. "You know, I've been wearing it since I was young, and I think it's amazing to work with a company that has such great clothing for a valuable price. It's fashion for everyone."
The blond bombshell has become one of the most sought-after names in the industry since launching her career in 2008. She's appeared on the cover of famous magazines - Vogue, Cosmopolitan, GQ, Esquire - and has partnered with other notable brands, including Bobbi Brown cosmetics and Guess.