VIDEO: Jennifer Hudson, Iggy Azalea Perform 'Trouble' on IDOL

What do you get when you mix one hugely talented Idol alum with the reigning queen of rap? "Trouble", baby! Iggy Azalea and Jennifer Hudson (Dreamgirls) were gracious enough to swing by Idol HQ to perform their awesome single, one that could very well feature on the next Billboard Hot 100 Night. Hudson will soon make her Broadway debut in a revival of the musical "Color Purple."

Next week, Wednesday, April 15 (8:00-10:00 PM ET live/PT tape-delayed), the finalists will perform on an "American Classics"-themed show, which features songs selected by the viewers at home! Fans were called to action and asked to suggest "American Classics," using the Twitter hashtag #IdolClassic, creating a list of songs from which the competitors could choose.

IDOL fans now have the opportunity to save a finalist from elimination by a real-time vote using Twitter. Once host Ryan Seacrest announces the bottom two finalists and they perform, the IDOL Fan Save hashtag #Save(ContestantName) for each will appear on air, and fans across the country will have a short window (five minutes) to Tweet their Save votes (one per Twitter account). Once the IDOL Fan Save window closes, no more votes will be accepted and the real-time, immediate results will be revealed by Ryan Seacrest.

Those fans who are not able to watch AMERICAN IDOL XIV during the East Coast or central time broadcast, can follow @AmericanIdol on Twitter to find out which contestants are in the bottom and when the vote window is open and/or watch the live stream from the studio by visiting AmericanIdol.com. Viewers can see the results of the Twitter vote on AMERICAN IDOL XIV when it airs in their markets.