A display apparatus includes a display, a single physical button and a processor configured to control the display to display a guide user interface (UI), a selection UI and a plurality of menu items, based on a user input received via the single physical button being identified as a short click input, move the selection UI from one menu item among the plurality of menu items to another menu item among the plurality of menu items, based on the user input being identified as a long press input, select the one menu item and execute a control function corresponding to the selected one menu item, and based on an execution of the control function, control the display to display a setting UI indicating a current setting value of the control function.