UPDATE: SCEA has confirmed the news to 1UP and refused to specify a new release date, even one within a "end of 2007" timeframe. Here's their official comment:
"In an effort to provide consumers with the most robust experience on the PlayStation 3, and access to a diverse catalog of downloadable content, the date of SingStar PS3 has been pushed back. We hope to have a new launch date confirmed in the near future. With a strong lineup currently available for the PS2 including SingStar Rocks, SingStar Pop, SingStar '80s, SingStar Amped and the limited edition SingStar Pop Ceramic White PlayStation 2 bundle, the franchise will continue to provide fun for the entire family this holiday season."
ORIGINAL STORY: The November 13 release date assigned to SingStar for PlayStation 3 in August may no longer be valid, as Sony confirmed to GamesIndustry.biz that the game needs additional testing and does not have a current release date.
"We want to ensure that consumers have the best possible experience when playing SingStar on PlayStation 3," said a Sony spokesperson to the website. "We are therefore taking extra time to test the downloadable content and community features of SingStar to ensure that it is as rich, simple and accessible a SingStar experience as possible."
According to the report, outside sources have claimed licensing issues with the songs/videos included in the game, but Sony has not acknowledged such rumored difficulties. Without a known release date for SingStar on PlayStation 3, wannabe vocalists may need to check out the last-gen SingStar franchise this holiday season, which recently spawned a pair of PlayStation 2 iterations (SingStar 80s and SingStar Amped).