bad argument #2 to 'random' (interval is empty) Why? What?

So here is my code:

local playlist = {
	stargazing = {
		["Name"] = "Kygo - Stargazing ft. Justin Jesso",
		["ID"] = "rbxassetid://1067101081",
		["Info"] = "This music can't be used on YouTube."
	},
	
	skyhigh = {
		["Name"] = "JJD - Skyhigh",
		["ID"] = "rbxassetid://271028838",
		["Info"] = "This music can be used on YouTube."
	},
	
	allfallsdown = {
		["Name"] = "Alan Walker - All Falls Down",
		["ID"] = "rbxassetid://1163496902",
		["Info"] = "This music can't be used on YouTube."
	}
}

local music = game.Workspace:WaitForChild("Music")

local playing = {}

while wait(5) do
	print(#playlist)
	if music.IsPlaying == false then
		local pickMusic = math.random(1, #playlist)
		playing = playlist[pickMusic]
		local notif = Instance.new("Hint", game.Workspace)
		notif.Name = "MusicNotif"
		notif.Text = "Now playing: "..playing.Name.." - "..playing.Info
		music.SoundId = playing.ID
		music:Play()
	end
end

Here is the output:

0 15:12:44.287 - ServerScriptService.Scripts.Playlist:28: bad argument #2 to 'random' (interval > is empty) 15:12:44.287 - Stack Begin 15:12:44.288 - Script 'ServerScriptService.Scripts.Playlist', Line 28 15:12:44.288 - Stack End