Britney & Rihanna - S&M Remix (Billboard Music Awards 2011) Best Quality HQ 

Best performance ever! Love you brit and ri ri

Britney's voice is amazing

Love this show

Song has a badass beat to it

everybody applauding Britney

amo kuesta performance w britneyyyyyyyyyyyyyyy

our Godney

I loved it. nice pair up, but Britt should have come up earlier in the middle not the last part

Britney is miming...no doubt.

Britney was singing live

i love britneys voice. but sounds liek she has a cold her elol

omg lol

@little1nini of course not!!! Britney is totally signing live!!! at last, she's signing like the recored version, and rihanna lose a little the breath, and with this, i'm not trying to make less rihanna, of course not!! she's awesome as well

@pokemonrules404 Rihanna was a little nervous on this stage. Her voice was trembling and her breath was not smooth.

@EveAndKellyRocks why? o.O

rihanna totally showed britney up! I mean riri is no aretha but dam brit could'nt even sing live! Brit's voice has always been weak, but she would do the best she could with the voice she had. This song was perfect for abilities and even the recording did not sound great. Oh well, atleast she can sill dance.

@pokemonrules404 You mean she lip sings better than Rihanna.

I honestly think Britny sings better then Rihanna!