A Little Riddle

Date of occurrence:
July 7, 2015.

Here is a little riddle for you:
Two of the four are recent pictures from Daley and the other two are from Levi when he was Daley's age. Can you tell who is who?

I have a slight suspicion, but I am not sure. They look too much alike. Have fun figuring it out.

And don't ask me!