Britney Spears hasn't had a big hit in almost four years, and critics say her career is slumping. This all would change when she dropped her song "Toxic." ♪ It's dangerous ♪ ♪ I'm falling ...

Britney Spears has a discography ... something new and captivating...and of the song itself. "Toxic" is undeniably one of the defining songs of Spears' career, holding a special place in her ...