Only Christina Aguilera could belt her heart out and stop onlookers in their tracks all while crossing her arms and casually singing her hit "Beautiful" without a microphone. The Grammy-winning singer ...

She said she’s excited to be on Team Adam this season, but she still loves to perform at open mic nights when she visits home. You might one day catch her singing at Rhythms Coffee.

Party speakers are loud and cool, but you know what's cooler? Karaoke speakers, and the Soundcore Rave 3S might be the best one you can buy right now.