Singleton in C#

Once I've found a Singleton pattern implementation in C#

class Singleton<T> where T : new()
{
    private static readonly T inst = new T();
    public static T Instance
    {
        get { return inst; }
    }
}

I was suprised by the elegance of this code snippet (and also it is thread safe!)

This code could be used as follows:

internal class Singleton<T> where T : new()

{

    private static readonly T inst = new T();

    public static T Instance

    {

        get { return inst; }

    }

}

internal class Single

{

    public Single()

    {

        System.Console.WriteLine("Constructor!");

    }

}

public class Test

{

    public static void Main(string[] args)

    {

        Single sss1 = Singleton<Single>.Instance;

        Single sss2 = Singleton<Single>.Instance;

    }

}