The guy creates a few layers with his pedals and sings. This sounds a little like Sublime I think, if they were still around (damn you Bradley). The name of the band he performs with is Dub FX, not to be mistaken with another band that goes by the same name. The name of the song is “Free World.”
Here’s another one of my favorites:
Ed Alleyne-Johnson, in case you haven’t heard of him. I guess he used to busk in the streets of Chester until he was cited for selling his CD’s without a permit, so he moved his act to York. He makes his violin sing.