Let say I have a simple line

```
hell<cursor>o

```

What is the fastest way to yank this line and paste to a result like this?

```
hello

hello

```

I am currently doing this:

```
yy # To yank this line
p # Paste on next line
O # To insert and add a line above the pasted line

```

But doing so I will end up in Insert Mode. How can I stay in normal mode for all this?