I think Miley Cyrus's hit is popular due to the wall of text when it comes to the lyrics of the song. Of course when it has that laid back, but fun themed patriotic sound, it will gain massive response. Also, at some point, we will all be forced to realize and learn that all people must grow up and can't remain "disney" forever just because they started out as or were known as "disney". Although she still may be "disney" now, I believe at some point she should have the right to... ok maybe I shouldn't use the word "right", but PRIVILEGE to grow out of the disney label and have the freedom to just be another regular artist. She may be disney, but I wouldn't consider "Party in the USA" to really be "a disney song". I actually think it's one of the more mature songs she has done (well it's pretty much the only Miley hit I'm familiar with). I believe labels can help to hurt or make people and certain things not be all they can be, and I think the same way the "disney" label hurts or limits certain people from a stereotypical standpoint, I believe that the label "dance" or even "techno" can do the same.
A good (MODERNIZED, 2010) example of dance music and sound should be and include the following:
Agnes - Release me
Jay Sean - Down
Calvin Harris - flashback
Akon - Beautiful
Sneaky Sound System - I will be here
2PM - Again & Again
Dj Mad - Put ur drinks up
Black Eyed Peas - Boom boom pow
INNA - amazing
Meleka - go
Judy Torres ft Bonnie Stone - Hell no (Carlos Berrios Mix)
Basic Element - Touch you right now
Pitbull - Shut it down
Annagrace - Let the feelings go
LMFAO - Shots!
Egypt - In the morning
Platnum - trippin
David Guetta ft Akon - Sexy Bitch
Flo Rida - In the ayer
Jeremih - Imma Star (Max Method's Remix)
Cascada - Evacuate the dancefloor
Alex Sayz - Shame on me
Jay Sean - Do you remember
The Egyptian Lover - Freaky DJ
Dj Antoine - underneath
Kim Leoni - Medicine
Britney - 3
I don't think certain hits (such as certain electronic ones by Britney, and a few others) should be ignored, simply because of the fact that she's very well known, popular, famous, and people don't like that, because I guarantee you that if the same exact beat were used with a new, unknown singer, dance fans would've been about 80 times more shocked and impressed. I do agree however that NONE of Lil Wayne's productions fit the dance category at all (UNLESS of course you are one of those people going by that rule "dance music is anything you can dance to" and then playing "get busy" by Sean Paul afterwards.... but I will not get into that story since that does not fit into my frame of thinking). I'm not exactly sure if I'd place any of Beyonce's hits in the dance music category.