UPDATE // "3" is Number 1!

Britney Spears' song "3" will debut in the #1 spot of the Billboard Hot 100, making Britney the first artist in over three years to accomplish such a feat.

"3" is Spears' third song to debut at #1; her first was "...Baby One More Time" (1999) and her second was "Womanizer" (2008).

Congratulations, Brit!