It's sad for me to say this, but since Rihanna's success with 'Umbrella' i've taken closer notice of her live performances and I have to agree.....
She falls flat, it's like watching a girl prance around in her bedroom singing into a hairbrush...

There's no artistry there.
All the other singer's mentioned had STAGE PRESENCE...forget the ability to blow like Whitney etc, you don't need that to be talented or mezmirizing on stage--- u need personality. U need to be able to morph into characters that make people entertained or stunned (appreciative of music) NOT your LOOKS (sorry Rihanna, ur a stunner but not a superstar).

Call me a hater, but i can sit through Kelly Roland, Britney, Janet, Beyonce etc and see that theres some type of care and goal going into their performance... I can even sit through Omarion, Ciara and CB and know they PERFECTED their dance moves...felt what the music was doing.

Rihanna, i WISH to HELL i could appreciate for more than her looks and choice of clothing cuz I think she's a charming girl....but no, i can't....

Hopefully someone in her camp will make her develop a more believable persona on stage... so I can look at the next 'up and coming' and say "O...I can tell she's influenced by Ri..." or better yet...she's just a Rihanna wannabe.... I doubt it though.