Credit: Michael Becker/©2013 Fox Broadcasting Co.

FOX has new reason to believe the superstition that 13 is an unlucky number — Season 13 American Idol premiered with the show's worst-ever ratings, as Entertainment Weekly reports, only pulling in 15 million viewers with a 4.6 rating in 18-49 adults.

That's down 23 percent from the Season 12 premiere, which itself was 19 percent down from the Season 11 premiere.

Granted, these ratings are still good by today's broadcast TV standards, so there's no immediate danger to Idol. It's just that the performance is now merely "good" as opposed to "unbeatable."

Season 7, for example, delivered an average of 30 million viewers, an audience twice as big as last night's turnout.

Now American Idol is back in the "beatable" realm — as proven by the fact that the most recent season of The Voice premiered with a 5.1 rating in that 18-49 demographic, besting Idol for the first time, as EW points out.

The good news is that critics and fans alike — or, at least, those who tuned in — seem to love the new energy of the show, particularly the charisma of new host Harry Connick Jr.

But will that positive buzz be enough to keep viewers away from the show's timeslot competition: shows like Two and a Half Men, The Big Bang Theory, The Vampire Diaries, and the increasingly popular Duck Dynasty? Only time will tell.

Stay tuned, readers! No, really. The show could use the help."

Source: Entertainment Weekly

Dan Clarendon is an assistant editor at Wetpaint Entertainment. Follow him on Twitter and Google+!