*The lead's a bit long considering the length of the article. 
 *"which incoporates elements of dancehall nearing its end" Clumsy phrasing- seems to suggest that the song contains elements of the later days of dancehall. 
 *"The song has also been noted for promoting self-expression among women, encouraging Aguilera's "girls all around the world" to "shout louder" and verbalize their opinions and emotions.[11]" The reference given doesn't support this- it's just the lyrics. 
 *The critical reception section is a little quote-farmy. This seems to be the way a lot of pop music articles are written, and it's not really a great way to write. "Smith said x. Jones said y. Thompson said z." It could do with a little bit of restructuring- for instance, deal with all of the discussion of the lyrics in one place. That said, "Betty Clarke from The Guardian opined that the song "rewrites feminism to a hip-hop beat"." isn't really a critical review. I'm also not really following what's meant by "that "if Aguilera ever really squared off with her fellow ex-Mouseketeer, she'd kick Britney's ass"." Is he meaning she would win in a fight? If so, what's that got to do with this song? 
 *Why do you mention some charts, but not others, in the prose? Also the fact it went Gold in Aus is important. 
 *In the video, are the women Augilera's friends or just women from the area? 
 *"marking one of the most successful video of Aguilera" Clumsy 
 *"It was also inducted to the TRL Hall of Fame.[27]" What is this and why do we care? 
 *Presumably, it was released as a single in more countries than you've listed, seeing as it charted as a single? 
 *There's some inconsistent reference formatting. I don't know why there is the obsession with putting both the publication and the company that owns the publication, but if you're going to do it, do it consistently. 
 *"On her latest world tour Back to Basics Tour she performed a fragment of the song after "Still Dirrty".[28]" Clumsily written, will go out of date. 
 *What is Xtina Web, why is it reliable and why are you italicising it? 
 *Stylus Magazine/BBC Music/MTV News/Digital Spy/Sputnikmusic do not need to be italicised. 
 *Who Sampled/Music Notes do not need to be italicised. Unclear reliability? 
 *What is ATRL? Definitely reliable? 
 *Have you checked the charts/references you use against WP:BADCHARTS? 
 *I'm not feeling the need for the music video screenshot. 
 *The image caption for the concert pic is straight up wrong- that's not what she's performing at all, according to the Flickr page. Also, don't refer to her as "Christina". 
 *:File:02 Can't Hold Us Down.ogg should really be 25 secs at 64kbps, not 26 at 72. Petty sounding, perhaps, but the GA criteria explicitly require that non-free content is used correctly. 
 *I see from the categories the song was first released in 2002- this could be better clarified in the article. 
 *:Category:Sex-positive feminism is not appropriate. 

 I'm sorry, I don't really feel that this article is ready for GA status. I also made some fixes which included adjusting some very sloppy writing. I'll leave this open for now, but I worry that the article is too far from GA status to be fixed appropriately in the timeframe.