Lucius played NYC's Beacon Theatre on Wednesday night (5/4), and for the the first song of their encore they brought out a special guest, Roger Waters, to perform Pink Floyd's "Mother." As you may know, Lucius' Jess Wolfe and Holly Laessig were part of Roger Waters' band for the 2017/2018 US+Them tour, though "Mother" was not played at those shows. It's a lovely version of the song, with Lucius' harmonies alongside Rogers' whispered vocals. You can watch fan shot video of that and check out Lucius' setlist below.
This was only the second time Lucius have covered "Mother" live. The first was in London in 2018 and Waters joined them then, too. They first sang it with Roger during his set at the 2015 Newport Folk Festival.