Sara Bareilles returns to Broadway's 'Waitress' starring with Jason Mraz and cast at the Brooks Atkinson Theatre on Jan. 16, 2018. (Photo by Walter McBride/Getty Images)

“Waitress” will end its run on Broadway in January, producers Barry and Fran Weissler announced Tuesday.

The musical, with a score by Sara Bareilles, will play its final performance on Jan. 5, 2020. At the time of closing, the musical will have been on Broadway at the Brooks Atkinson Theatre for close to four years.

The closing announcement comes after a steady decline in grosses, with the musical grossing about 50% to 60% of its potential for large sections of the past two years. This trend has been punctuated by spikes in grosses, as star names such as Jason Mraz, Todrick Hall and Bareilles herself, performed in the show.

The musical brought in $498,571, or 49% of is gross potential, in its most recent eight-show week.

“It is such a bittersweet moment to say goodbye to our home on Broadway at the Brooks Atkinson Theater, but I am reflecting upon this enormously magical time with a tremendous amount of gratitude…and smiling through tears,” Bareilles said in the press release.

The production was capitalized for $12 million and announced recoupment in January 2017, less than 10 months after it began previews on Broadway.

The current cast includes Shoshana Bean, Erich Bergen, Charity Angel Dawson, Caitlin Houlahan, Ben Thompson, Larry Marshall and Noah Galvin.

“Waitress” currently has a production running on the West End, as well as a national tour, which is currently in Toronto. It has planned productions in Australia and Holland in 2020 and Japan in 2021, with more international markets in discussion.

The show, which opened on Broadway on April 24, 2016 and began previews that March, is the longest-running musical at the Brooks Atkinson Theatre