VIDEO: Jason Derulo Performs 'In My Head' on AMERICAN IDOL

On last night's AMERICAN IDOL, Jason Derulo stopped by to mentor the contestants and treat the audience to a performance of his new hit, 'In My Head.' Check it out below!

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 hostRyan 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.