Last.fm lanched widgets for personalized music, these widgets can be added to myspace profiles or blogs. These widgets can be used to show a radio based on artist or genre, Playlist of songs or last played tracks.

For using radio widgets membership is not required just type the artist or genre and your widget is ready. After specifying the artist name just give your myspace url or click on embed code link to post to your page. See the Shakira radio in this post.