grimace’s birthday everyone remembers celebrating a birthday at mcdonald’s, that’s why we created a new memory by gifting grimace his own shake. things took a turn when tiktok decided to make grimace a viral griminal. we took this as an opportunity to connect with fans using a neutral approach. and the trend started to shift, with fans supporting grimace’s innocence. we not only broke through with a viral trend, but with 77 billion impressions, grimace boosted total company sales by 14%.