EVANSTON — Though insider reports indicate that Mayfest’s executive board came this close to actually having to ask Detroit-based rapper Danny Brown to do a reading of The DaVinci Code by the moonlight, the group finally released a statement Friday afternoon that they had accomplished the sole task for which they receive $300,000 in funding each year: booking a nighttime headliner. Following the Dillo-eve announcement of rapper Wiz Khalifa as the festival’s final act, NU students voiced their concerns on