Maybe he should be called Hairless Belafonte these days but let’s cut the longtime activist— who turns a forever young 84 on March 1— some slack. In addition to his work as a human rights advocate, Harry Belafonte lit up the radio dials with his Calypso hits in the 1950s and has proven himself a charismatic cinema favorite in flicks such as Carmen Jones (1954) and his popular 1974 team-up with Sidney Poitier and Bill Cosby in Uptown Saturday Night, with the actor performing a broad Godfather parody of Marlon Brando. (Belafonte and Brando were acting-school classmates in the late 1940s.) Belafonte will be on hand Monday, Jan. 31, 7 p.m., at Syracuse Stage, 820 E. Genesee St., to help launch the yearlong celebration of the Syracuse Peace Council’s 75th anniversary, and maybe he’ll even be coerced into singing a lilting lyric or two from “Day-O.” Admission is on a sliding scale from $15 to $1,000, depending on what you can swing. For details, call 472-5478.