The 40-year-old actress announced in an Instagram video Monday that she will reprise Samantha "Sami" Brady on the long-running NBC soap opera.
"I have big news to share -- I'm coming back to Days! I'm so excited to tell all of you in person, sort of," Sweeney said in the clip.
"I'm really, really excited to be back in Salem," she added. "I'm going to start shooting again in a couple weeks, so you have to tune in to find out more."
Sweeney left "Days of Our Lives" in 2014 after starring on the series since 1993. She told Soap Opera Digest she will return to the show in May for "an extended visit."
"From my end, it takes a little bit of logistics with projects I'm working on. And unfortunately, this year's been hard for me because of my knee injury, so I had to push some stuff back," the star explained.
"I figured out a schedule, blocked out some time that I had available and we figured it out! I'll be shooting in Salem in May and June," she shared.
Sweeney is also known for hosting the NBC reality competition "The Biggest Loser," and for starring in the "Murder, She Baked" film series on the Hallmark Movies channel.
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She last appeared in "Murder, She Baked: Just Desserts" in March.
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