Simon Wheatley

This plugin adds a widget to display your upcoming events (gigs) from <a href="http://last.fm/" rel="nofollow ugc">Last.FM</a>, with 
options for displaying full venue details, linking, etc. Events are displayed using valid 
<a href="http://microformats.org/wiki/hcalendar" rel="nofollow ugc">hCal</a> <a href="http://microformats.org/" rel="nofollow ugc">Microformat</a> code (makes no 
difference to the display, but plays nicer with the web in general).
This plugin is still in development, but is stable enough that I use it on my own blog. Once other 
people have used it successfully for a while I’ll feel happier labelling it stable.
Please feel free to try the plugin on previous versions of WordPress, I think it may work on 2.2, maybe lower.
Please let me know how you get on.
<h3>Requests</h3>
I’m simply noting requests here, I’ve not necessarily looked into how possible any of these are or how much effort they might require.
<ul>
<li>BUG REPORT: A lot of the timestamps for events aren’t correct therefore, you see “495 months ago.” because it shows a timestamp of 1969 for some reason even though the dates are correct on last.fm. Is there a way you could have it to just display the date instead of trying to calcuate the time until? (Reported by <a href="http://www.deadlydesigns.com/" rel="nofollow ugc">Mike</a>)</li>
<li>REQUEST: Would it be possible to have the link to last.fm events open in a new window so it will not load over top of the blog? (Requested by <a href="http://www.deadlydesigns.com/" rel="nofollow ugc">Mike</a>)</li>
</ul>

Last.FM Events

This plugin adds a widget to display your upcoming events (gigs) from Last.FM on your Wordpress blog (using the hCal Microformat).

optune

This plugin automatically creates a post for every gig on your optune.me account. You can choose if the post is published 
imediately or if you want to publish it manually. Furthermore, you can display a list of all your upcoming gigs on a page 
or post with the shortcode <code>[optune-gig-calendar]</code>.
If you don’t want to have a new post for every gig you can change the post type to gig.

WordPress Gig Calendar

Automatically import your optune.me gigs to your Wordpress

Last.FM Events vs WordPress Gig Calendar