Sliding up and down
Smooth up and down
Up and Down
Up and Down
Bouncing up and down
Up and down
up and down
Up and down
Up and Down
Up and down
Bouncing Up And Down
Up, Down, Up, Down, Up, Down, Up...
Up and down
Up and down
up and down
Up And Down
Up and down
Slowly up and down
Up and down, Up and down....