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"Simon Cowell was feeling very smug this week. Well, smugger than normal anyway. And why? Because this was &amp;#039;British Invasion&amp;#039; week on The X Factor USA, giving him a chance to make it all about himself once again. The thing is, Cowell wasn&amp;#039;t the centre of attention the whole time, because some of our contestants pulled some pretty spectacular performances out of the bag. We&amp;#039;ve picked out five of our favourites... let us know who impressed you this week! Alex &amp;amp; Sierra Well, that&amp;#039;s a relief. We were a bit worried last week that Alex &amp;amp; Sierra had lost it with their worst performance yet. Luckily, they pulled it back around this time with the help of a little boyband known as One Direction. Their take on &amp;#039;Best Song Ever&amp;#039; made it into a completely new track, with plenty of chemistry, purring vocals, grit in Alex&amp;#039;s voice and even a bridge (OK, so we&amp;#039;re not sure about the bridge). Thank goodness Alex &amp;amp; Sierra are back on top form.      Josh Levi Josh might be just 15 years old, but he already seems like he&amp;#039;s been a popstar for years. Who else could take on &amp;#039;Sweet Dreams&amp;#039; and make it sound so fresh and exciting? Who else could stand out in front of a whole bunch of dancing policemen? Who else could rock a breakdown like that? We&amp;#039;re constantly excited to see Josh on stage, and he keeps impressing us. Move over, Justin Bieber - there&amp;#039;s a new kid on the block.      Rion Paige Now, Rion might have been a favourite for many of you for a long time. Certainly, she&amp;#039;s a bundle of cuteness and seems like a lovely girl. But something about her hasn&amp;#039;t quite clicked for me... until now. Her take on &amp;#039;Your Song&amp;#039; was absolutely stunning - simple, unpretentious and utterly captivating. Just as the judges raved, it&amp;#039;s hard to believe that she&amp;#039;s only 13 years old when she produces a performance like that.      Lillie McCloud We&amp;#039;ve loved Lillie since her first audition - we&amp;#039;re still goggling at the fact that she&amp;#039;s 54 with a bunch of grandkids - but we haven&amp;#039;t properly fallen for her on the live shows. That was until she belted out Kate Bush&amp;#039;s &amp;#039;This Woman&amp;#039;s Work&amp;#039;, looking stunning and controlling the song wonderfully. As Simon pointed out, it&amp;#039;s easy to take her voice for granted, but really we need to take a moment and realise just how good Lillie is. Her best live performance yet.      Khaya Cohen Khaya ended up in the bottom two last week, and honestly? We have no idea why. She thinks she&amp;#039;s not likeable enough, but we&amp;#039;re big fans of Khaya here. Not only does she have a beautiful clear voice, but she&amp;#039;s always interesting to watch. It can be tough to keep &amp;#039;Let It Be&amp;#039; interesting, but Khaya certainly managed it - and whenever we got glimpses of her gorgeous gravelly tone we fell a little bit more in love. Here&amp;#039;s hoping Khaya won&amp;#039;t be performing a save me song again tonight.      The X Factor airs on Fox. Who impressed you and who failed to win you over this week? Let us know by leaving your comments below! "^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.digitalspy.com/tv/the-x-factor-us/news/a532940/x-factor-usa-british-invasion-week-five-best-performances-video/>