They lied about the lip-syncing because doing so was a stipulation of the contract they signed with Frank Farian. The thing Rob and Fab were really guilty of is naivety. They were young and inexperienced and didn’t read the fine print. Then, when Fab and Rob threatened to go public, Frank threw them under the bus and claimed he had nothing to do with it, despite the entire thing not only being his idea, but having long been his MO in the industry.