Hi gogoriviera,
welcome to the forums!
There's quite a few different ways to do this.
What kind of audio are you using? e.g. an apple loop, audio recorded into the project, audio you'[ve imported?
You can destructively edit the audio's time and pitch or non-destructively use plugins.
This thread may help:
[url]http://www.macprovideo.com/forum/logic/logic-pro-express&id=27737&sid=#27835[/url]
or this too:
[url]http://www.macprovideo.com/forum/logic/logic-pro-express&id=30449&sid=#30449[/url]
Let me know how you get on.
:)