PK German will present Nina Simone and soul singer Merry Clayton, two black performers who have only recently gained prominence, in concert on Friday, February 18 at 8:00 pm. in University Hall. The concert will cap off the activities associated with Black Culture Week. Miss Simone, who started as a gospel singer, has also been a traditional jazz pianist and has now branched into rock. Tickets, which are $3 in advance and $4 at the door, are available at Mincers, the Bandbox, the Hi-Fi House, Joywind, and Newcomb Hall.