From Sam Borden at LoHud: The performance by Jay-Z and Alicia Keys has been postponed until tomorrow night. Instead of doing “Empire State of Mind” before Game 1, the weather has forced MLB to make it part of the pre-game for Game 2. Seems there were concerns that the set-up of the stage and other equipment might have damaged the field if it was all wet, so the show was pushed back a day. Full post here.