Somerville to celebrate fifth annual Fluff Festival in Union Square

The Somerville Arts Council and Union Square Main Streets present an ArtsUnion event, Fifth Fluff Fest: Whoopie (Pie)!, curated by the Somerville Arts Council, the city and Mayor Joe Curtatone, Saturday, Sept. 25, from 3 to 7 p.m. at Union Square Plaza. Rain date is Sunday, Sept. 26.