Open the Just Dance Now app on your phone
Make sure your phone and TV are connected to the same Wi-Fi network
Open a web browser on your TV, smart TV, or streaming device
Go to the Just Dance Now website shown in the app
Enter the room code displayed on your phone into the TV browser
Wait for the TV screen to sync with your phone
Use your phone as the controller to start dancing
If needed, cast or mirror your phone screen to the TV
If using a Chromecast, select the cast option from the app or browser
If using Apple TV or AirPlay, mirror your iPhone to the TV
If using a game console browser, open the Just Dance Now website there
Make sure pop-ups and browser permissions are allowed
Restart the app, browser, or TV if the connection does not work