Pygame Def gameLoop not updating

Question

I want to create a GameOver screen with the option to "Play Again" using KEYDOWN event. The quit option works but my gameloop does not update. When I type gameLoop() the font doesn't turn blue.

My Code:

def gameLoop():
      gameExit=False 
      gameOver=False

      lead_x = 300
      lead_y = 300

      lead_x_change = 0
      lead_y_change = 0

      randAppleX = random.randrange(0, display_width-block_size) 
      randAppleY = random.randrange(0, display_height-block_size)

      gameDisplay = pygame.display.set_mode((display_width,display_height))

while not gameExit:

    while gameOver == True:
        gameDisplay.fill(white)
        message_to_screen("Game Over, Press C to Play Again or Q to Quit",red)
        pygame.display.update()

        for event in pygame.event.get():
            if event.type == pygame.KEYDOWN:
                if event.key == pygame.K_q: #This works fine!
                    gameExit = True
                    gameOver = False
                if event.key == pygame.K_c:
                    gameLoop() #This won't work

    if lead_x > 789 or lead_x < 1 or lead_y > 589 or lead_y < 1:
                    lead_y_change = 0
                    lead_x_change = 0
                    print "Game Over"
                    gameOver = True


    for event in pygame.event.get():
            if event.type == pygame.QUIT:
                gameExit = True
            if event.type == pygame.KEYDOWN:
                if event.key == pygame.K_LEFT:
                    lead_x_change = -block_size
                    lead_y_change = 0
                if event.key == pygame.K_RIGHT:
                    lead_x_change = block_size
                    lead_y_change = 0
                if event.key == pygame.K_UP:
                    lead_y_change = -block_size
                    lead_x_change = 0
                if event.key == pygame.K_DOWN:
                    lead_y_change = block_size
                    lead_x_change = 0                


    lead_x += lead_x_change
    lead_y += lead_y_change

    gameDisplay.fill(white)
    pygame.draw.rect(gameDisplay, red, [randAppleX,randAppleY,block_size,block_size])
    pygame.draw.rect(gameDisplay, black, [lead_x,lead_y,block_size,block_size])
    pygame.display.update()

    clock.tick(FPS)

message_to_screen("You Lose Turd", red)
pygame.display.update()

pygame.quit()
quit()

gameLoop()