I am getting a `StackOverflowException` when I am calling my form from my class.

In my `MainForm` I call the `Youtube.cs` class using this, `Youtube yt = new Youtube();`. Then in my `Youtube` class I call the `MainForm` using, `MainForm main = new MainForm();`. I believe this is what is causing the StackOverflow as it seems to be creating a loop.

I need to access the `Youtube` class from `MainForm` and also `MainForm` from my `Youtube` class so is there any way around this without causing the StackOverflow?

This is the from the top of `MainForm`: 

```
public partial class MainForm : Form
{
    public MainForm()
    {
        InitializeComponent();
    }

    Youtube yt = new Youtube();

```

And this is from the top of `Youtube.cs`:

```
class Youtube
{
    MainForm main = new MainForm();

```