Who isn't familiar with the advanced features of the very popular WordPress plugin called MailChimp?…
- Download widget from here
- Unzip it and upload ‘nm_mailchimp’ directory on your site location /siteroot/wp-content/plugins/
- Go to Plugins Menu and Activate Plugin
- Set your API Key under Setting -> MailChimp Widget
- Now go to Appearance->Widgets and drag widget to sidebar or footer. And set the Title and select List then Save
- Now Widget will be shown on your site front end.