Griffiths is a huge fan of Hernandez - and he'd love it if they became like two Peas in a pod when it comes to scoring.
He told the Scottish Sun: "The person I really admire is Javier because he is only 5ft 9in and still scores lots of goals.
"It doesn't matter how big or wee you are in the Premiership, as long as you have got the ability, then you will score.
"I knew a move was coming in January but I didn't know it was going to be to the Premiership.
"I have been at the club for four months now but it is still sinking in.
"When I was a young boy, I watched Match of the Day on a Saturday night.
"It is every boy's dream to play at this level. If you want to be at the highest level then the Premiership is where you have got to play."