https://www.theguardian.com/technology/video/2018/may/18/the-new-yannylaurel-do-you-hear-brainstorm-or-green-needle-video

After Yanny and Laurel, a new audio illusion is dividing the internet. This time, it was taken from a 2014 YouTube review of a children’s toy. The toy is saying ‘brainstorm’, but many people are saying they can also hear ‘green needle’, depending on which word they concentrate on before hearing the sound. What do you hear?