1. Download and launch the Just Dance Now app on your smartphone (Android or iOS)2. Launch your internet browser on your computer and go to www.justdancenow.com3. You will see your dance room number and QR code displayed on the website. These are unique and are generated just for you. When prompted in the Just Dance Now app, scan the code and the game should connect to your dance room.4- Done! You should now see that if you select a song on your smartphone, it is also displayed on your computer screen.5- Select any song and launch it6- Hold your smartphone in the right hand and follow the movement of the dancer on the screen like in a mirror!Additional players around can also download the game on their smartphone and enter the same dance room to play with you.. Download the Just Dance Now app on the App Store Download the Just Dance Now app on the Google Play store. Watch the video . Instantly access the world of Just Dance. Play the world's favorite dance video game without a videogame console! All it takes to turn any room into a crazy dancefloor is an internet-connected screen and a smartphone to use as a controller! Experiencing the fantastic . Mix - Just dance Steve Aoki & Louis Tomlinson Just Hold On YouTube Louis Tomlinson & Steve Aoki Perform Just Hold on! | The X Factor Global - Duration: 4:38. X Factor Global 1,305,270 views.