If your having trouble with this mission during the school level, the three tools can be found outside the Northern Coffee Shop in Downtown, Near a set of stairs in the School Level, and between two stairways in Hollywood.
In Boston, Find the archway on the rightside of the level, just down the street from Jeers, and head inside. Then Spine over to the higher halfpipe and then get some air and jump to the left of the halfpipe and press Black as you break through the left window above the arch. Star Wars Kid will be waiting inside the small room. Press B to make him dance! Press B again to make him stop.
To "bust" out this un-believeable stunt, you must first have had past all the levels and their tasks. Then, when grinding, hold a for three seconds and wait for a certain sound appears that rings like a bell, and quickly press R. You can quickly get out of this position by jumping.