Myspace Events Widget is a WordPress plugin by Andrea Pola that use simplehtmldom library to scape http://www.myspace.com//shows (in the current version) to get your events and date! As of version 0.9, you can get your events without insert any myspace login/key data.
This plugin uses greatly the structure of the myspace page, you may need to frequently update the plugin to synchronize it with the new version of the page made by myspace. Tested from an Italian Ip to italian myspace.
Download: http://wordpress.org/extend/plugins/myspace-events-widget/