-ITSTOP100-SONGS">Titanium (feat. Sia)</a></h3><h4><a href="https://itunes.apple.com/us/artist/david-guetta/id5557599?uo=4">David Guetta & Sia</a></h4><a href="https://itunes.apple.com/us/album/titanium-feat.-sia/id458062862?i=458062926&uo=4&amp;v0=WWW-NAUS-ITSTOP100-SONGS" class="more">Buy Now on iTunes</a></li><li><strong>82.</strong><a href="https://itunes.apple.com/us/album/its-most-wonderful-time-year/id171434474?i=171434594&uo=4&amp;v0=WWW-NAUS-ITSTOP100-SONGS"><img src="http://images.apple.com/autopu