What is this bands name?

I heard a song on Sirius radio on one of the indie rock channels. The DJ said that they were either from Scotland or Ireland. The name of the band was very weird. I think there was an 'M' in there somewhere...and the title of the song was something with 'heart'. I was too distracted to hear any lyrics, but it was an awesome song. I tried to write the information somewhere, but I was driving. I know the details are vague, but if anyone even thinks they have an idea, I would love to hear it. I googled it for like an hour straight, but nothing turned up.