UK-based Rara on Tuesday will bring a new streaming music service to 18 countries around the world, AllThingsD revealed. The company is the brainchild of Rob Lewis, who also founded Omnifone, which provides music services for LG, Sony and RIM smartphones. The service is priced at $5 per month for unlimited, ad-free streaming over the web, or can take their music with them for $10 using an Android app, with an iOS app coming.