All the signs point to "Unconditionally" as the second single off "Prism".
Quote:
Katy's Favorite Song On The Album Is Called "Unconditionally." With woodblock percussion and a dramatic bass line, "Unconditionally" doubles as the singer's favorite new track as well as the most mature offering on "Prism." An ode to love that looks past all flaws, the song acts as a compellingly grounded predicate to "Teenage Dream's" starry-eyed title track. "There is no fear now... I will love you unconditionally," Perry belts over the uncluttered arrangement.