How to make this script work for everyone at the same time?

I made this script:

script.Parent.Explosion.Changed:Connect(function(value)
	if value == true then
		for i, player in pairs(game.Players:GetPlayers()) do
			local gui = script.Parent.Meltdown1
			gui:Clone().Parent = player.PlayerGui
			wait(15)
			player.PlayerGui.Meltdown1:Destroy()
			script.Parent.Explosion.Value = false
		end
	end
end)

The problem is its working for first player, then waiting 15 seconds and only then start working for second player. I need it to work for every player at the same time. Can someone help me?