[Videos] 'American Idol' Hollywood Week Previews: J-Lo Challenged to a Walk-Off, Another 'Wrecking Ball' Cover

American Idol is narrowing in on one of the most important aspects of the show: finding out who has made it into the semifinals. By the end of this week's episodes, we'll know who will be competing in the Top 31, including the two guys who will face off for the final spot. (If you can't wait that long, check out the Top 31 spoilers here.)

But before that happens, the remaining contestants must perform again as Hollywood Week comes to a close. FOX has released preview videos, giving us a sneak peek at five of the singers we'll see on Wednesday and Thursday.  Read More...



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