2. Ja Rule

Loudest Single(s): "Livin' It Up," "Holla Holla," "Murda 4 Life"

Complex says: Back in the early 2000s, there weren't many other rappers yelling on tracks as loud as Ja Rule was—come to think of it, there still aren't. Ja set the decibel bar high when he released "Livin' It Up" from his third studio album Pain Is Love. Let's not forget his resounding love cuts, "Put It On Me" and "Always On Time."