How do i make the "PLAY" Button GUI fade in after 5 seconds ?

As the title says heres the script

function onButton1Down() game.Workspace.CurrentCamera:remove() wait(.1) game.Workspace.CurrentCamera.CameraSubject = game.Players.LocalPlayer.Character.Humanoid game.Workspace.CurrentCamera.CameraType = "Custom" end

script.Parent.MouseButton1Down:connect(onButton1Down)

It's like you join the game but for me the play button stays but i want it to show up in 5 seconds later and make it fade in so first they cannot see.

I have an intro where u join the game, the camera rotates until the player presses the play button, kills the camera and goes into game.

helpp :3

Im Not Sure If You Mean 5 Seconds Then Make The Play Button Fade In Or Play Button Fade Out After

debounce = false
function FadeOut()
local Play = script.Parent
if Play.TextTransparency ~= 1 and Play.BackgroundTransparency ~= 1 and debounce == false then
debounce = true
for i=1,20 do
Play.TextTransparency = Play.TextTransparency +.05
Play.BackgroundTransparency = Play.BackgroundTransparency +.05
wait(.25)
end
end
end

script.Parent.MouseButton1Click:connect(FadeOut)

So you can't make the GUI Button Fade? I can help you :D

function onButton1Down()
 	game.Workspace.CurrentCamera:remove()
script.Parent.WHATEVERYOURGUIISCALLED.BackgroundTransparency = 0.8
script.Parent.WHATEVERYOURGUIISCALLED.TextTransparency = 0.8
 wait(1) 
script.Parent.WHATEVERYOURGUIISCALLED.BackgroundTransparency = 0.6
script.Parent.WHATEVERYOURGUIISCALLED.TextTransparency = 0.6
 wait(1) 
script.Parent.WHATEVERYOURGUIISCALLED.BackgroundTransparency = 0.4
script.Parent.WHATEVERYOURGUIISCALLED.TextTransparency = 0.4
 wait(1) 
script.Parent.WHATEVERYOURGUIISCALLED.BackgroundTransparency = 0.2
script.Parent.WHATEVERYOURGUIISCALLED.TextTransparency = 0.2
 wait(1) 
script.Parent.WHATEVERYOURGUIISCALLED.BackgroundTransparency = 0
script.Parent.WHATEVERYOURGUIISCALLED.TextTransparency = 0
 wait(1) 
game.Workspace.CurrentCamera.CameraSubject = 	game.Players.LocalPlayer.Character.Humanoid game.Workspace.CurrentCamera.CameraType = "Custom"
 end

script.Parent.MouseButton1Down:connect(onButton1Down)

This should fade in the play button AND do the camera thingy. If the camera doesn't work, you should have told me :)