Rihanna is letting her ass hang out on the streets of Belfast as she films a music video that most of us are never going to see because the cable stations that are supposed to play it focus more on "reality" programming than anything music related. Although I've been trapped in the local shopping mall on occasion and it appears that's where music videos of late have gone to die - on big screens that tempt the tweens to text in their requests to play up on them. I find myself getting Rihanna's songs stuck in my head less because I like them than because they're driven into my grey matter with violent advertising force.