Lang Lang Wears Armani, $36,000 Montblanc

Before Lang Lang leaves his Carnegie Hall dressing room for the stage tomorrow night, three things will be as close to perfect as humanly possible: his memorization of the music, the tuning of the piano and the cut of his jacket.

Tomorrow’s concert and dinner for his Lang Lang International Music Foundation are expected to raise about $1 million. (The concert has been rescheduled because of hurricane Sandy to June 3.) Hosted by actor Alec Baldwin, the evening will feature Lang Lang performing with violinist Joshua Bell, jazz vocalist Dee Dee Bridgewater, Danish singer-songwriter Oh Land and a group of musicians who have received scholarships from the foundation, which mentors young pianists.