I have a DataFrame (`df1`) looking like this:

```
        0   
Height  175     
Weight  80

```

Now I want to add a row `Age` with the value `37` but not at the end (for this we have already a [solution](https://stackoverflow.com/questions/46621712/add-a-new-row-to-a-pandas-dataframe-with-specific-index-name)) but on Top of my DataFrame. 

What I have yet tries is:

`pd.DataFrame(np.insert(df1.values, 0, values=['n',5], axis=0))` but I can onyl get this to work without the 'n' string and then there is only one column left. 

Anyone a better idea that solves my problem?