How to Fade a ScreenGUI on Character Spawn?

I have a frame in StarterGui that is supposed to fade from BackgroundTransparency 0 to 1 when the character is added into the game, including respawns and first join. I tried this script, located under the frame, but it didn't work.

local plr = game:GetService("Players").LocalPlayer
local blood = script.Parent
local ts = game:GetService("TweenService")
local goal = {BackgroundTransparency = 1}
local info = TweenInfo.new(1, Enum.EasingStyle.Linear, Enum.EasingDirection.Out)
local tween = ts:Create(blood, info, goal)
plr.CharacterAdded:Connect(function()
    blood.BackgroundTransparency = 0
    tween:Play()
    wait(1)
    blood.BackgroundTransparency = 1
end)

Please help.