The Gay Men’s Chorus of Washington hosts a monthly piano bar and open-mike night at Dupont’s Black Fox Lounge. Singers of all levels are welcome to perform solos, duets or even sing-a-long with members of the chorus. The series is meant as an homage to D.C.’s former gay bar Friends and its brilliant pianist Carl Barnwell. Thursday, Feb. 3, from 7 to 10 p.m. at the Black Fox Lounge, 1723 Connecticut Ave. NW. Call 202-483-1723 or visit blackfoxlounge.com.