MSI has done this event for the past seven years.
Estimated attendance by SDPD is 40,000 people over the three nights.

Equipment used:
6 Genie towers
8 Yamaha YST1520 speakers
60 Par64
28 PanCommand Color faders
8 Cyberlights
1 ETC Expression 2x
14 6" Fresnels
24 Source 4 lekos
180 2.4k dimmers
6000 feet Socopex cable
6 Data flash strobes

There were over 14,000 lamps on the tree itself.
It takes a week to install.
 

Photography by Lee Schwabe