re: R&B Thread
Surprising I only heard the version with Beyonce like twice or three times. Loved both Justified and FutureSexLoveSounds. Justin had the major advantage of having the Neptunes and Timberland on the albums but it still takes talent to put it all together so he definitely gets props.
Listening to Groove Theory right now and it's a shame Amel Larrieux never really had strong success as a single act. Then again the black dude in the Groove Theory group was the one arranging all their successful songs.