How would you make a BillboardGui visible to team only? I cannot figure it out.

game.Players.PlayerAdded:Connect(function(Plr)
	Plr.CharacterAdded:Connect(function(chr)
		local tp = game.Teams["Test Team"]:GetChildren()
		local tp2 = game.Teams["Test Team 2"]:GetChildren()	
		if Plr.TeamColor == BrickColor.new("Black") then
			local BBG = script.Black:Clone()

			BBG.Parent = chr.Head
			for i = 1, #tp2 do
				while true do
					wait()		
					BBG.PlayerToHideNameFrom = tp[i]
				end
			end
		end
		if Plr.TeamColor == BrickColor.new("White") then
			local WBG = script.White:Clone()
			WBG.Parent = chr.Head
			
			for i = 1, #tp do	
				while true do
					wait()	
					WBG.PlayerToHideNameFrom = tp[i]
				end	
			end
		end
	end)	
end)

This for some reason will not work and will show both guis.

Edit: Tab your code correctly!!!!!