The list encompasses a broader range of artists than most lists of this kind. I appreciate that.

Lady GaGa #3 ?!?!

Gaga is way too high on this list. No one can be this influential after only three years. She's still a relatively new artist, and the novelty of that has yet to wear off, so it's way too soon to put her with the likes of Madonna, Diana Ross and Aretha Franklin in terms of "changing pop music". Hell, Beyonce is more deserving of the #3 spot than Gaga.

Kindly make your way to YouTube and Wikipedia and educate yourselves a bit. My God.

Gaga in her short 3 years clearly had much more impact and influence than Britney spears , what the hell did she bring to the pop culture beside making the trainwreck attitude a trend?

Madonna is where she belongs

Glad to see Miss Aretha, Kate Bush who is really underrated by the way making the list

Donna summer must be much higher than that , she was the first to bring electro elements in the disco era

Tina isn't pop and shania is country

This list misses: CHER, ANNIE LENNOX and JANET , all had great influence in the new pop scene

and i'm shocked that WHITNEY didnt make the cut

Kate Bush shouldn't be there and Britney and Gaga are too high. I personally think Avril deserves a place on that list for revoloutionizing pop-rock or Christina or maybe even Amy Winehouse.