LED stays on until button is pressed again works

/*
 * Manvi Mittal
 * Dice Prototype
 */

const int pinLed1 = 2;
const int pinLed2 = 3;
const int pinLed3 = 4;
const int pinButt = 5;
boolean buttPressed = 0;
boolean ledOn = 0;
boolean prevButt = 0;

void setup()
{
  // put your setup code here, to run once:
  pinMode (pinLed1, OUTPUT);
  pinMode (pinLed2, OUTPUT);
  pinMode (pinLed3, OUTPUT);
  pinMode (pinButt, INPUT);

  Serial.begin (9600);

  digitalWrite (pinLed1, HIGH);
  digitalWrite (pinLed2, HIGH);
  digitalWrite (pinLed3, HIGH);
  delay (500);
  digitalWrite (pinLed1, LOW);
  digitalWrite (pinLed2, LOW);
  digitalWrite (pinLed3, LOW);

}

void loop()
{
  // put your main code here, to run repeatedly:
  buttPressed = digitalRead (pinButt);
  //Serial.print (buttPressed);

  buttPressed = debounce (prevButt);
  if (prevButt == LOW && buttPressed == HIGH)
  {
    ledOn = !ledOn;
    Serial.print (ledOn);
  }
  digitalWrite (pinLed1, ledOn);
  digitalWrite (pinLed2, ledOn);
  digitalWrite (pinLed3, ledOn);

  prevButt = buttPressed;
}



boolean debounce(boolean last)
{
  boolean current = digitalRead(pinButt);
  if (last != current)
  {
    delay(5);
    current = digitalRead(pinButt);
  }
  return current;
}