OK, I was hoping the answer would be here already, but alas. Are the last two lines actually the words to some song? Cuz if they aint, it's a pretty weak punchline.
Hmm, another new outfit for Alice. What are you up to Scott? i can't believe that this is innocent or that you got bored with the pink jacket, you have an ulterior motice somewhere.
She almost looks happy to be doing two jobs and PHB hasn't been reduced to sludge by the fist of death...............it's not the real Alice but a doppelganger from the Brady demension?