A blonde, brunette, and redhead are waiting in front of the Pearly Gates when God comes out to greet them.
"Usually I wouldn't let any of you girls in, but I'm having a good day. Tell you what - I'll make you all a deal. If you can climb my 1000-step staircase and listen to a joke at each step - without laughing - I'll let you in."
They all agree.
The brunette loses at the 100th step.
The redhead makes it a little farther, but starts to giggle at the 500th step.
The blonde makes it to the 999th step and begins to laugh hysterically.
God asks her "You were so close, how come you started laughing?"
She replies, "I just got the first one!"