Search the site SearchUniversal headlines final 2026 Midsummer Scream revealsJohn Murdy revealed the final details for Universal Studios Hollywood's Halloween Horror Nights Sunday evening at the Midsummer Scream convention in Long Beach. Slash has composed an original score for the house, featuring Spanish guitar and an exclusive song titled "15 Candles." Halloween Horror Nights starts Thursday, September 3 at Universal Studios Hollywood and continues select nights through Sunday, November 1. Midsummer Scream is movingMidsummer Scream, the world's largest Halloween fan convention, announced at the conclusion of this year's program that it is moving. It's a big - and needed - upgrade for Midsummer Scream, which has outgrown the Long Beach Convention Center that has housed it for the past decade.