Constantine will perfom at the Sarcoma event on April 30th.
http://www.americanidol.com/news/view/pid/8290/
Tony-nominated and former American Idol Finalist, Constantine Maroulis and Season 11 Finalist Elise Testone will perform at the Gala, which supports the SFA mission to help increase research to find new and better therapies with which to treat patients with Sarcoma.