Black Eyed Peas? Are they back together?

I'm confused. 0.0 So I've heard that new song by the Black Eyed Peas, Boom Boom Pow, and I thought that the Black Eyed Peas broke up....So did theyy get back together, or is it an old song that came back, or did they just do like a special song and will never do one again? So are they back together or what? Please help. (: