#1 Rihanna & Britney Spears
Rihanna and Britney have a massive on-stage pillow fight to open up the 2011 Billboard Music Awards.
#3 Janet Jackson
1990 -- the year following her concept album "Rhythm Nation 1814" -- was a victorious one for Janet Jackson, who walked away with the most awards at '90's BBMAs.
#10 Britney Spears
A young Britney Spears showed off impressive moves -- including a backflip -- during her performance of "Baby One More Time" and "Crazy" at the 1999 awards.
#11 Rihanna
A teenaged Rihanna wins Female Artist of the Year -- an award she is nominated for again this year -- at the Billboard Music Awards in 2006.
#27 Gwen Stefani
No Doubt's Gwen Stefani struck a pose alongside her Harajuku Girls dancers at the 2004 Billboard Music Awards.
#31 Jennifer Lopez
Jennifer Lopez, who will take the stage again at this year's Billboard Music Awards, gave her back-up dancers a sexy workout during her 1999 rave-tinged performance of "Waiting For Tonight."
Full list.
