It's so unfair. Last night, Jay-Z made an appearance at the Wireless Festival in London and pleased the crowd by performing several tracks from his latest album, Magna Carta Holy Grail. After being joined by Justin Timberlake for the album's intro, Hov ran through tracks like "Somewhere in America," "F*ckWithMeYouknowIGotIt," "Crown," "Picasso Baby," and "Beach Is Better."