Run it
Copy the script and paste it into your executor.
sky = Instance.new("Sky",game:GetService("Lighting"))
sky.SkyboxBk = "http://www.roblox.com/asset/?id=125073253838285"
sky.SkyboxFt = "http://www.roblox.com/asset/?id=125073253838285"
sky.SkyboxLf = "http://www.roblox.com/asset/?id=125073253838285"
sky.SkyboxRt = "http://www.roblox.com/asset/?id=125073253838285"
sky.SkyboxUp = "http://www.roblox.com/asset/?id=125073253838285"
Sound = Instance.new("Sound", game.Workspace)
Sound.Name = "Sound"
Sound.SoundId = "rbxassetid://1839246711"
Sound.Volume = 20
Sound.Looped = true
Sound:Play()
Just a skybox and sound

Universal