Sunday's season finale saw a new winner crowned, the TV debut of Katy Perry's new single, «Daisies,» and a historic performance of «We Are the World.»Lionel Richie, who co-wrote the charity anthem alongside Michael Jackson, led the pre-taped spectacular, which marks the first time the tune has been performed on TV since 1985.The number featured remotely recorded vocals from all of the Top 11 contestants from Season 18, as well as Richie's fellow judges, Perry and Luke Bryan.Past winners — including Ruben Studdard, Fantasia, Katharine McPhee, Kellie Pickler, Jordin Sparks, Lauren Alaina, Phillip Phillips, Laine Hardy and Alejandro Aranda -- also lent their voices to the historic number, which each singer recorded remotely.The tune also