Now I was already familiar with Seeqpod and Songza where you can find music with just a few clicks, but today I stumbled upon Songerize. It's basically a search engine for music, just like Seeqpod and Songza, however it has virtually no options and plays the song you are looking for automatically if it's found. Easy to use if you're looking for a song in a hurry with just one click and that's the main reason why I like it.

Songerize