Yo tell me what you want, what you really really want!
Because it promotes the upcoming UDance: 12-hour philanthropic dance marathon that unifies students and raises money to fight childhood cancer.
According to their site, students have raised $1.4 million over the past 7 years and have already racked up half a million dollars this year alone.
UDance is a symbol of the students' accomplishment and unity, and this flash mob was the perfect way to get ready for the big sha-bang.
[H/t Bro Bible]