On Saturday, January 28, 2012, the Philadelphia Orchestra held an anniversary concert and ball at the Academy of Music. The Philadelphia Orchestra played with Yannick Nézet-Séguin as conductor, Yo-Yo Ma on cello and special guest artist Diana Krall. The event featured fabulous dance bands, champagne, cocktails, post-concert fare, dessert and coffee. Notable attendees included Mike Mills of R.E.M. and Senator Bob Casey. Photography by Jeff Fusco.