SingStar on the XMB:
- The SingStar game client is FREE, no disc required!
- Sing with PS Eye
- Compatible with SingStar microphones, official PlayStation Wireless headsets and common USB microphones
- Short demo songs available for download for new SingStore customers
- Easy access PS2 and PS3 disc swap from song carousel
- Use PSP or PS Vita to create playlists with SingStar Remote
- Instantly share your performances with the SingStar community and your friends on Facebook
- Acquire new trophies
Source: EU Playstation Blog