Physical Danger
You'll either be on nobody's radar or have the red carpet thrown out for you, so you'll be fairly safe. Your biggest threat is going to be partying a little too hard with those crazy Hollywood types—drugs and alcohol have become some of the music industry's favorite party guests, unfortunately. So, as long as you make sure you're not putting yourself in danger, you should be good.
Unless, of course, you're getting in an East Coast/West Coast type rivalry à la Puff Daddy versus Dr. Dre in the 1990s. In that case, you may want to find a less bullet-riddled career path. On the bright side, there might be a Police-sampled hip-hop track made for you in memoriam.