There was a distinct style floating around the airwaves in 2005, a collective energy that helped define the sound of the mid-2000s. Among the songs on Billboard’s 2005 Year-End Hot 100 singles chart — “Hollaback Girl,” “1, 2 Step,” “Don’t Phunk With My Heart,” “Candy Shop” — was Amerie’s hit single, “1 Thing.” … More »