In a talk titled "Lessons unlearned in console for free-to-play" today at Develop Conference, SingStar London studio director Dave Ranyard revealed that the game has seen 1.5 million new users since it went free-to-play last October.
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Now as a free-to-play product, in which users can download the SingStar client for free and then buy whichever songs they would like as in-app purchases, the game is seeing a conversion rate of around 6 percent. Singstar's "whales" will buy 500+ songs, and a handful have even purchased more than 1000 songs.