Tears! Breakdowns! Fainting! Who will survive 'American Idol's' 'Hollywood Week'?

More than 300 contestants made it to Hollywood, but only 70 will survive "American Idol's" "Hollywood Week." The contestants are pushed to their limits and ambulances are called to the scene as some faint, vomit and even fall off the stage. Judges Randy Jackson, Jennifer Lopez and Steven Tyler put the contestants to the test as they reveal whom they believe have what it takes to be the next "American Idol." The roster-trimming kicks off tonight (8 p.m.) and continues Thursday (8 p.m.) and Wednesday, Feb. 15 (8 to 10 p.m.), on FOX.

Throughout the Hollywood rounds, the contestants will face intense challenges, completely different from what they encountered during auditions. They'll sing solo, perform in groups for the judges, and then sing on a huge stage as they compete against each other to remain on the show. Who will make it and who will be sent home? See what happens when emotions run high, lyrics are lost and tears are shed.

Those who survive Hollywood will head to Las Vegas for the "Performance Challenge" on stage in Cirque du Soleil's Viva ELVIS Theatre at Aria Resort & Casino. Some will shine, while others will crack under the pressure on a special two-hour episode Thursday, Feb. 16 (8 to 10 p.m.).

The following week, contestants will take the stage one last time and sing for their lives to prove they deserve to make it to the next round. For some, it's the end of the road, but for those who make it, it will be the start of an incredible journey. The second phase of the competition comes to a dramatic end when Randy, Jennifer and Steven reveal this season's semifinalists Wednesday, Feb. 22 (8 to 10 p.m.), and Thursday, Feb. 23 (8 p.m.).

Visit www.americanidol.com for all of your "American Idol" news.

Become a fan of "American Idol" on Facebook at www.facebook.com/AmericanIdol. Follow the series on Twitter @AmericanIdol and join the discussion at #AmericanIdol. Also, follow host Ryan Seacrest at @RyanSeacrest, and follow the judges: @yo_randyjackson, @JLo and@iamstevent.