The article discusses the recently released official trailer for the movie "Rock of Ages," highlighting actor Tom Cruise's surprising singing skills. The trailer offers a glimpse into the film's plot, which revolves around the 1980s rock music scene. The article notes that Cruise takes on the role of rocker Stacee Jaxx and showcases his impressive vocal abilities by performing in the trailer. The movie, based on the Broadway musical of the same name, also stars Alec Baldwin and Catherine Zeta-Jones. The article concludes by expressing excitement for the movie's release and the opportunity to see Cruise's singing talent on full display.