"It was a night of firsts and was the unexpected, unannounced world premiere of the images from the coming Beatle Rock Band game which played on vast screens throughout Got To Get You Into My Life," reads McCartney's official site.
The footage starts at the 1:30 mark in the below clip, which was noticed by Kotaku. Expect many more details and glimpses as the game's 9/9/09 debut approaches.
I see what you did there.