Let's rock the house!
Disco strobe light using screen (works with every phone!).
Launch the app and enjoy ;)
Move your finger on the screen to adjust the frequency.

Looking for free apps? Easy strobe is a free app for Android devices. Play your favorite music and launch disco strobe light for your phone!
Check the clock .. It is the best time to download this app. And do not forget to send sms to a friend;) No video but screenshots should be enough.

Screenshots: