The actress took to Instagram to announce the news, which she did with a photo of her posing with a DAYS script. "Guess what?! I get to be a part of celebrating #days50!!" she wrote. "So thrilled!!!"
At this time, there's no word of exactly when Sweeney -- who unfortunately lost her bid to win her first ever Emmy award this past weekend -- will appear on the canvas, other than her appearance tying in to the show's 50th anniversary, which officially happens in November.
Sweeney joined the cast of DAYS in January 1993 and played Sami until her exit in October of 2014. As fans may recall, the character took off to Hollywood for a movie deal.
Other cast members returning for the 50th anniversary celebration include Peter Reckell (Bo Brady) and Stephen Nichols (Steve "Patch" Johnson).
Are you excited to hear Sweeney will be back for DAYS' anniversary? What would you like to see happen to Sami when she returns to town? We want to hear from you -- and there are many ways you can share your thoughts.