iOS Updating ViewController UILabel from another Class

I'm new to development and been banging my head against a wall trying to figure this out, I'm sure, that I'm missing something silly but after trying various different solutions, I'm still unable to get the result I'm looking for. I would like to be able to update a UILabel in a ViewController from another class, here is a little demo program that I cannot get to work, I have the ViewController which has two UILabels, one is updated from with the `viewDidDoad` and the other one I would like to update from the other class called NewClass which is called from `ViewController`, I can the see the class is being called correctly as the console is logging the `NSLog` entry but I cannot get the syntax for updating the `UILabel`. Thanks in advance. ViewController.h ``` #import <UIKit/UIKit.h> @interface ViewController : UIViewController { UILabel *_labelupdate01; UILabel *_labelupdate02; } @property (nonatomic, retain) IBOutlet UILabel *labelupdate01; @property (nonatomic, retain) IBOutlet UILabel *labelupdate02; @end ``` ViewController.m ``` #import "ViewController.h" #import "NewClass.h" @interface ViewController () @end @implementation ViewController @synthesize labelupdate01; @synthesize labelupdate02; - (void)viewDidLoad { [super viewDidLoad]; labelupdate01.text = @"Update from ViewController"; [NewClass updatedisplay]; } @end ``` NewClass.h ``` #import <Foundation/Foundation.h> @class ViewController; @interface NewClass : NSObject @property (nonatomic, assign) ViewController *ViewController; + (void)updatedisplay; @end ``` NewClass.m ``` #import "NewClass.h" #import "ViewController.h" @implementation NewClass @synthesize ViewController = _ViewController; + (void)updatedisplay { NSLog(@"NewClass - updatedisplay"); ViewController *labelupdate02; labelupdate02.labelupdate02.text = @"Update from NewClass"; } @end ```