Britney has had more ups and downs than a rollercoaster, but the key to Spears' success is that she always tried again. And sure, maybe her 2007 MTV VMA comeback didn't leave us saying, "Gimme More," but it did have us talking.
Rumor has it Britney Spears is in the studio working on new music. And maybe even more exciting - "Glee" will be honoring the precocious pop star on next week's episode. (AP Photo/Dan Steinberg, Photo by Larry Busacca/Getty Images for NARAS)