Optical illusion: Only 1% of people can spot the hidden face in this burger

Look closely at this picture. On first glance, it looks like a regular image of a massive, juicy burger. It has a sesame bun, and inside it we can see lots of vegetables, patty, tomatoes, lettuce, and even cheese. Tempting isnt it? However, amidst the deliciousness, there is a hidden face inside the burger. Yes, that is right. Can you spot it? Look closely, but you just have 20 seconds. Get, set, go!