EDM producer Marshmello performs live wearing clothes and a marshmallow mask of what colour?

The answer is white because the EDM producer Marshmello performs live wearing white clothes and a white marshmallow mask. This combination of colors creates a distinctive and easily recognizable identity for his persona, allowing him to stand out and captivate his audience. The color white also adds a sense of purity and innocence, contrasting with the energetic and vibrant nature of his music, creating a visually appealing and memorable stage presence.