Concert poster for "THE GRATEFUL DEAD, 1960s psychedelic rock concert poster, vibrant and colorful tie-dyed Volkswagen bus as the central focal point, swirling patterns of neon and pastel tie-dye extending outward. Cheerful, multicolored dancing bears in playful poses surrounding the bus, tiny mushrooms scattered throughout the composition, adding whimsical detail. Retro typography with bold, curving letters, high-energy layout, saturated colors of orange, pink, blue, green, and yellow. Soft glow effects and radial gradients, vintage poster art style, dynamic and harmonious composition. mvpstrCE style, rtropopCE, poster art, poster