No I'm referring to the People Magazine interview, the one where he called back in and pretended to be a Trump employee. Washington Post "broke" the story IIRC, and the media spent a whole day with audio forensic analysts deciding "is this Trump's voice?". Trump got on interviews and says "Well it doesn't sound like me. When is this from? 25 years ago? Come on."

Here's a great cap of it at the end of the day: https://www.youtube.com/watch?v=dPnMfSJ_qis - skip to 1:50. You can even hear the studio crew start laughing as they realise they've been played.