Houston hip hop fans will have the chance to see Lil’ Wayne, Baby and David Banner in a free concert next month as part of “Hip Hop 4 Life—Know Your Status”—but there’s a catch:  They’ll have to take an HIV test first. The event is sponsored by local radio station 97.9 The Box and the Texstars Foundation Project, a nonprofit organization started by recently elected State Representative Borris L. Miles that hopes to raise awareness about HIV in some predominately African-American Houston districts where infection rates are disproportionately high.