Rocker Adam Lambert has announced he'll perform a reworked version of Aftermath on American Idol next week. “Hey guess what?!” Lambert tweeted his more than 900,000 followers. “I will be performing Aftermath on American Idol on Thursday, March 10.” The 29-year-old American Idol season 8 runner-up earlier announced that he'll donate the proceeds from the song to The Trevor Project, the California-based non-profit that runs the nation's only 24-hour confidential suicide hotline for gay and questioning youth. “Releasing a revamped version of AFTERMATH,” Lambert messaged. “Proceeds to benefits The Trevor Project. Wait till you hear it – it's now a hot pop dance anthem.” Aftermath appeared on Lambert's debut studio album For Your Entertainment, which he featured in his just-completed world tour Glam Nation. In October, Lambert released a video for the It Gets Better campaign, in which he told troubled gay teens to stay strong and proud. The It Gets Better Project, a collection of videos urging troubled LGBT teens to hang in there, because life gets better, raises awareness and funds for The Trevor Project.