Definitely hand lettered. Notice how the m's differ and how none of the connections between characters is the same. You would also have trouble using that y in the middle of a word.
Typophile
node 6068
Check out this thread for links to lots of monoline scripts you could use/tweak to approximate the logo.
And time to put on my Captain Obvious hat: 'hilfiger girls' is Gill Sans Bold. =)
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