Providence Equity Partners-backed Superstruct Entertainment, a live entertainment platform, completed an investment in International Concert Service, a German full service producer and promoter of live entertainment events. Financial terms were not disclosed. "We are very excited to join forces with ICS, the global leaders in metal. Led by Holger and Thomas, and supported by an experienced team overseeing a portfolio of quality events, we are confident that together we can continue to expand ICS and take the company and its events to the next level," James Barton, Superstruct CEO.