By Leah Ornstein - Radar Style & Beauty Editor
Before we find out who hits the high note a la mode at the 2012 Grammy Awards on Sunday, RadarOnline.com is bringing you on a walk down red carpet memory lane with all the rocking and shocking fashions of years past!
From wardrobe winners to sinners, check out all of the best, worst & wackiest fashions in the history of the music awards show in this special fashion flashback photo feature.
In 2000, Jennifer Lopez stepped onto the red carpet of the 42nd Annual Grammy Awards with then boyfriend Puff Daddy, in a look that went on to become one of the most iconic dresses of all times. The Latina singer was dressed to shock in her dramatically low-cut and sheer Versace gown, which barely covered her boobs. That same year, Britney Spears wore one of her glammest looks ever, channeling Old Hollywood in a white hot tank dress.
In 2001, Toni Braxton left nothing to the imagination in her slit-to-the-hip Richard Tyler gown, while Christina Aguilera, pre-stylist, looked like she was working the corner, not a red carpet in racy red threads.
Who can forget rapper M.I.A at the 2009 Grammy Awards, which happened to fall on her due date, when she performed onstage in a skintight, polka-dot mini?
In 2010 dueling country cuties Carrie Underwood and Taylor Swift both scored slots on the Best Dressed list. While the American Idol looked Grecian gorgeous in her Edition by Georges Chakra stunner, Tay Tay sparkled in a stunning Kaufman Franco number, which featured a sexy off-the-shoulder neckline.