This script IS FUNCTIONAL, however, it only changes the text of the identifier on the first song, why?

Here's the script;

print 'Loading Playlist'
identifyer = game.StarterGui.header.textframe.musicidentifyer
------------------------------------[[PLAYLIST]---------------------------------------------------------------------------------------------------------------------

song1 = "http://www.roblox.com/asset/?id=243372213" --insert the ID number after the "/?id="
song2 = "http://www.roblox.com/asset/?id=378820974"
song3 = "http://www.roblox.com/asset/?id=349828735"
song4 = "http://www.roblox.com/asset/?id=131261480"
song5 = "http://www.roblox.com/asset/?id=155319906"
song6 = "http://www.roblox.com/asset/?id=313144336"
song7 = "http://www.roblox.com/asset/?id=300622704"
song8 = "http://www.roblox.com/asset/?id=376020601"
song9 = "http://www.roblox.com/asset/?id=379496294"
song10 = "http://www.roblox.com/asset/?id=313694441"
song11 = "http://www.roblox.com/asset/?id=262092295"
song12 = "http://www.roblox.com/asset/?id=254702000"


--------------------------------------------------------------------------------------------------------------------------------------------------------------------------
print 'Creating a Source of Audio'
local music = Instance.new("Sound") -- This creates the sound. Since this is an Independent Variable, You should not change it at all.
music.Archivable = true -- This MUST be true or you may have some problems.
print 'Inspecting the Configurable Variables'

------------------------------------------CONFIGURABLE VARIABLES]]------------------------------------------------------------------------------

music.Parent = script.Parent -- This is where the sound will be placed. If you want the sound to be heard everywhere, don't change it or put it into Workspace.
--                                       If you want the sound to be heard in one spot, put it in a brick
--
music.Pitch = 1 -- Pitch manages the Pitch and Speed of the Sound. Pitch 1 is the normal sound, although some sounds have a problem that they are slow, increase this
--                 value so you can hear the original. There is a list of official pitches for songs named "Official Pitches".
--                 Adding multiple Pitches will require a bit of work, so if your a beginner, just stick with one pitch for now.
--
music.Volume = .8 -- This determines how loud the music will be. If this is being heard in one spot, this can configure how far you can hear the sound.
--                    The maximum is 1. Volumes set above 1 will be unaffected. 
--                    For music heard across the game, if you have other sounds, put this to 0.9 or 1, otherwise you won't hear your music because of the other sounds
--
music.Looped = false -- This determines if the sound will repeat forever. If you have more than one sound, you MUST set this to false, otherwise you will be able to
--                     have problems with pausing and playing
--
music.Name = "Player" -- This determines the name of the source of Audio. Name it whatever you want.
--
--

print 'Loading RMP 1.0'
while (true) do
    print 'Playing Sound 1'
music.SoundId = song1 
music:play()
identifyer.Text = "Twenty One Pilots - Stressed Out"
wait(130) 
    --2--
    print 'Playing Sound 2'
music.SoundId = song2
music:play() 
identifyer.Text = "Flo Rida - My House"
wait(130)
    --3--
    print 'Playing Sound 3'
music.SoundId = song3
music:play() 
identifyer.Text = "Major Lazer - Light it Up"
wait(130)
    --4--
    print 'Playing Sound 4'
music.SoundId = song4
music:play() 
identifyer.Text = "Imagine Dragons - Demons"
wait(130)
    --5--
        print 'Playing Sound 5'
music.SoundId = song5
music:play() 
identifyer.Text = "Ariana Grande - Problem"
wait(130)
    --6--
    print 'Playing Sound 6'
music.SoundId = song6
music:play() 
identifyer.Text = "DNCE - Cake by the Ocean"
wait(130)
    --7--
    print 'Playing Sound 7'
music.SoundId = song7
music:play() 
identifyer.Text = "Drake - Jumpman"
wait(130)
    --8--
    print 'Playing Sound 8'
music.SoundId = song8
music:play() 
identifyer.Text ="Lukas Graham - 7 Years"
wait(130)
    --9--
    print 'Playing Sound 9'
music.SoundId = song9
music:play() 
identifyer.Text = "Mike Posner - I Took A Pill In Ibiza"
wait(130)
    --10--
    print 'Playing Sound 10'
music.SoundId = song10
music:play() 
identifyer.Text = "Adele - Hello"
wait(130)
    --11--
    print 'Playing Sound 11'
music.SoundId = song11
music:play() 
identifyer.Text = "Fetty Wap - My Way"
wait(130)
--12--
    print 'Playing Sound 12'
music.SoundId = song12
music:play() 
identifyer.Text = "Nightcore - Everytime We Touch"
wait(130)


end