You can check trend keyword as your mobile phone wallpaper. The information is automatically updated every 30 minutes. You can check trending keywords in worldwide.

(To set up a Live Wallpaper you need to do as follows)
1. Tap and hold on an empty place on the home screen.
2. Select Wallpaper and Live Wallpaper from the opened window.
3. It is recommended to set it only on the lock screen.