Find out what makes Brooklyn’s own sami.the.great, um, great on Jan. 7 at the Mercury Lounge. Alongside the indie-pop songstress will be fellow New Yorkers, Tony Castles, Slowdance, The Sanctuaries and many more. Sami’s light voice is perfect for that grey day or even for when the sun is shining down. Doors for the show are at 7:30 p.m., with Sami’s set following shortly after. Tickets for the show are $10 and it is 21+.