Here's how you can download the Harlem Shake app free for your iPad, iPhone, iPad mini or iPod Touch.
1. Go to the Harlem Shake app preview page in iTunes (or tap the link on your iOS device to install the app directly).
2. Click the View in iTunes button.
3. Click the Free button to download the app.
4. Sync your iPad, iPhone, iPod Touch or iPad mini with iTunes to install the app.
Here's a description and screenshot:
"The Harlem Shake app is the best iOS app for making your own Harlem Shake videos. Gather your friends to shake it, twerk, and Bernie in an instant internet classic with this easy to use app. Film videos in two takes with an automatic countdown timer and instant music overlay that’s immediately synced for you. Export to your photo album or share with all your friends that just have to see you "get your shake on."
The Harlem Shake is an Internet meme that originated on January 30th, 2013 with a video released by YouTube comedy vlogger Filthy Frank set to music by heavy bass artist Baauer. The meme gained popularity days later after five Australian teenagers known as 'The Sunny Coast Skate' created several Harlem Shake videos that went viral on February 5th."