What Brought Darlene Love to Chicago?  David Letterman will officially be jealous. That’s because his annual holiday crush, soul crooner Darlene Love (the voice behind a number of killer songs in the Phil Spector songbook), is the headlining performer at the city’s 100th annual Christmas Tree Lighting Ceremony. The ceremony begins at 5 p.m. Tuesday at Daley Plaza. (Read the full article here)