You are looking at the HTML representation of the XML format.
HTML is good for debugging, but is unsuitable for application use.
Specify the format parameter to change the output format.
To see the non HTML representation of the XML format, set format=xml.
See the complete documentation, or API help for more information. 
<?xml version="1.0"?>
<api>
  <query-continue>
    <allpages apcontinue="Beats_By_Dr_Dre_earphones_Match_For_All_Songs" />
  </query-continue>
  <query>
    <allpages>
      <p pageid="169" ns="0" title="BackImage" />
      <p pageid="2895" ns="0" title="Basic Details About Nike Designer AirMax" />
      <p pageid="5613" ns="0" title="Basic Information About Nike Designer AirMax" />
      <p pageid="1313" ns="0" title="Beats By Dr Dre earphones Fit For All Audio" />
      <p pageid="966" ns="0" title="Beats By Dr Dre earphones Fit For All Music" />
      <p pageid="773" ns="0" title="Beats By Dr Dre earphones Fit For All Songs" />
      <p pageid="1677" ns="0" title="Beats By Dr Dre earphones Fit For All Tunes" />
      <p pageid="2719" ns="0" title="Beats By Dr Dre earphones Go well with For All Audio" />
      <p pageid="2767" ns="0" title="Beats By Dr Dre earphones Match For All Audio" />
      <p pageid="1189" ns="0" title="Beats By Dr Dre earphones Match For All Music" />
    </allpages>
  </query>
</api>