Tuesday's American Idol performance show pulled the lowest number of viewers for a performance show since March 2003. According to Nielsen ratings released Thursday, 19.4 million viewers tuned in to see the Top 6 perform the music of Shania Twain. This season, the performance shows have been averaging 25.3 million viewers, down 5 percent from last year.
Wednesday's results show was up 3 percent over the previous week as 19.4 million viewers watched Siobhan Magnus' elimination.
All this is an indication of the lackluster group of contestants in this season's cast. Another factor may be that Shania Twain, who served as mentor, isn't quite the draw she used to be and had no new music to promote.