R.kelly的i believe中前面那段奥巴马的演讲,是奥巴马的哪个演讲?

In small towns,In big cities,you came together
That's Democrats,Republicans and independence to stand up saying
That We are ONE nation,We are ONE people
There are times for Change has COME!(Barack Obama)
我稍微查了下,可能不是正式演讲词
只是带过的话语吧!