>>16547528FUN. is on an indefinite hiatus, Some Nights was an insane mega hit but their first album Aim and Ignite is better IMO. They basically all split and went solo, Nate Reuss had a solo album which was pretty mediocre and has been featured on a bunch of random tracks over the years. Andrew Dost basically faded into relative obscurity and I haven't heard anything from him actually. And Jack Antonoff went on to produce for some of the biggest pop acts of the past decade including Taylor Swift, Carly Rae Jepsen, Lorde, plus his own projects like Bleachers.