HHS Musical Sister Act begins Thursday, March 23rd March 18, 2017March 30, 2017 Judy Taylor All News, Holyoke High School News, News In Our Schools The Holyoke High School Music Department Presents “Sister Act” starting this Thursday March 23, 24, 25 at 7:30 p.m. and Sunday March 26 at 2:00 P.M.