Haylie announced the news on her Real Girl’s Kitchen food blog and wrote: “This week has seriously just become the best week of my life! As if announcing The Real Girl’s Kitchen TV show wasn’t enough, Matt just took me by total surprise and proposed…on April Fools’ Day of all days! The moment was genuine and sweet (like him!) and I couldn’t wait to say yes! We are so excited and happy to share our wonderful news with everyone! We both feel so blessed to have the love and support of our family and friends and can’t wait to start this new adventure!”

Looks like little sis Hilary Duff might have a big bachelorette party to plan soon, since she tweeted, “So happy to not have to keep this news in!! My beautiful sister @HaylieDuff and her amazing boyfriend @Matt_STS are engaged!!!!”