On May 17, 1989, at 7:30 p.m., the station became known as "Energy 105", and brought about the call letter change to WNRJ. Before the changeover, the station manager at the time, Bob Hank, executed an early viral marketing plan by playing the song "What's On Your Mind (Pure Energy)" by Information Society non-stop in a loop for hours — focusing on a repeat of the "Pure Energy" sample from Leonard Nimoy as Star Trek's Mr. Spock. The marketing stunt caused listeners to call emergency services concerned that some calamity befell the DJs and other station employees. Hank told reporters he was only trying to draw attention to the station's switch in format and new call letters. "We were just trying to draw a little bit of attention," Hank said. "We never dreamed it would go this far."