Washing machine and controlling method thereof

A washing machine comprising:

• a rotating tub configured to accommodate laundry;
• a water supply pipe configured to spray water over a surface of the laundry;
• and
• a controller configured to:
• control an operation of each of the rotating tub and the water supply pipe,
• execute an air discharge cycle in which the rotating tub is rotated to discharge air contained in the laundry before a water supply cycle is started,
• execute the water supply cycle in which water is supplied to the rotating tub, and
• execute a wash cycle in which the laundry is washed,
• wherein, during the air discharge cycle, the rotating tub is rotated faster than a rotational speed in the wash cycle so as to discharge the air contained inside the laundry, and
• wherein the air discharge cycle precedes the water supply cycle and the wash cycle.