You can easily and quickly import your list into MailChimp directly from Eventbrite to use with your Eventbrite templates!
After you set up your list for import, go to your Lists Tab > import.
That will bring up an import page. Just select EventBrite. We'll just need your Eventbrite API key to connect. Fill that API key field out, click on "connect to Eventbrite" and you can then import your list.