Sing! Karaoke by Smule is an application designed for the iPhone, iPad and Apple TV, so users need to have the mentioned gadgets. When using Sing! on Apple TV, users also need a high-definition TV, Internet connection, and a regular microphone if not using an iPhone as a microphone.
Sing! Karaoke by Smule allows people to have fun singing their favorite songs on karaoke with sound effects. It features more than 100,000 songs by popular artists. Through this app, users can record their videos while singing alone or together with a pop artist and upload them online. It's a great way to connect people around the world through liking, following and commenting on one another's uploaded song performances.