This is a seriously good drama. I was turned off at first at the idea of ANOTHER music drama, because I had been sorely disappointed in the ones in recent years. 'Shut Up' is not about music or a band, though. The friendship, rather brotherhood, between the main characters is the driving force and is what makes this drama so enjoyable. Bromance between hot guys is fun to watch no matter what, sure, but the writing and overall development of the story made everything even stronger. About L: I'll admit, I had issues with watching this at first because sticking idols into dramas never really turns out well. He is a really fantastic actor though. At the risk of giving too much away, I'll just say that even though I'm not a fan of his, I was very pleasantly surprised by this performance. He has real talent. The music is so good. Crappy music can really break a decent drama, but 'Shut Up's music really made everything better. Everyone says this is an emotional, heart-wrenching show, but it's also one of the only dramas to make me actually laugh out loud at my screen. Everything was crafted so nicely from beginning to end. If anyone else is on the fence about giving this a shot, just go for it. (Rewatch is a 9 only because I rarely rewatch dramas). I watched this in 2 days because I literally could not pull myself away. Give it a shot!