AceShowbiz -

Soon after the last round of "American Idol" auditions was wrapped up in Las Vegas, FOX releases the first promo poster. Featuring the judges and the host, the poster reminds fans that the show is moved to new night combo, Wednesday and Thursday starting January 19 at 8/7c.

In the meantime, new progress on the search for "the one" has been reported. Around 60 contestants made it to the Sin City on Tuesday, December 14 and only 40 were set to return to Los Angeles. The Las Vegas round is the continuation of Hollywood Week where contestants from seven cities audition were wilted down.

The episode was filmed at the LOVE theater, aka The Beatles tribute hall at the Mirage hotel and casino on the Las Vegas Strip. Contestants were told to sing Beatles' songs on stage with a live band. "You really get to see who are the performers and who is not going to be the performers," Jennifer Lopez said in a news conference Tuesday.

But "it's proving very difficult to chop it down. We're in that place where everybody's so good, it's like, 'Who do we send home?' It gets harder every day," Lopez admitted. She also said that the young ones are the ones who actually thrive. The show has lowered the age limit from 16 to 15.

"The 15- and 16-year-olds really have been some of the biggest surprises to us and the ones who have really blew us away," she said. Randy Jackson chimed in, "We never thought dropping the age one year, to 15 this year, would've made that big a difference. But it's crazy."

Jackson then gushed, "This is the best talent we've ever had." Yet the judges are not passing the contestants easily. "We've [all] been very hard. If they can't sing, Randy will say, 'Who told you you can sing?' And I will ask them if they ate paint chips as a kid," Steven Tyler said.