Sussex Technical High School is planning a big “Rave Review” party to celebrate its 20th birthday and the 50th anniversary of the vo-tech school. The event will take place at the school on Saturday, Sept. 17 from 6 until 10 p.m. All graduates and friends are invited. Sponsored by the Sussex Tech Alumni Association, the evening will be catered by Lighthouse Landing. Self-guided tours of the building and a chance to reconnect with old friends will highlight the evening. There will also be special performances by the Sussex Tech pom pom squad and drum line. The first 250 alumni to register will receive a one-year free membership in the alumni association. Dress for the evening is semi-formal/business casual. Tickets are $25 per person and are available at the Sussex Tech high school office or online at the ST Alumni Facebook page. Call 302-856-0961 for more information. Tickets are on sale now.