From the Main Menu, select ‘Freeze’. Next, select ‘Starting Steps’ then select ‘The Travel Song’. Dance through the song and when a freeze move appears, stand still until you get three Freeze Stars. You will see the freeze move coming up in the dance moves that scroll along the bottom of the screen. You have five chances in this song to get three Freeze Stars. If you earn three Freeze Stars four times or three Freeze Stars three times and three Gold Stars on the song, you will unlock this achievement.
Or you can use the chair method so you are guaranteed three Freeze Stars all five times.