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" The Glee cast will cover artists including Justin Bieber, Britney Spears and Carly Rae Jepsen during the new season, it has been confirmed. Five tracks from forthcoming episodes premiered on the show&amp;#039;s Facebook page on Wednesday evening (September 5).  Guest star Kate Hudson will perform a mash-up of &amp;#039;Dance Again&amp;#039; by Jennifer Lopez and &amp;#039;Americano&amp;#039; by Lady GaGa, while Kevin McHale and Darren Criss will duet on a medley of &amp;#039;Boys&amp;#039; by Britney Spears and &amp;#039;Boyfriend&amp;#039; by Justin Bieber. Heather Morris will tackle another Spears track, covering &amp;#039;Gimme More&amp;#039; in the show&amp;#039;s second Britney Spears-themed episode. Criss&amp;#039;s version of &amp;#039;It&amp;#039;s Time&amp;#039; by Imagine Dragons also debuted, along with a cover of Carly Rae Jepsen&amp;#039;s &amp;#039;Call Me Maybe&amp;#039; performed by various cast members. Glee&amp;#039;s fourth season will premiere on Thursday, September 13 at 9/8c Fox in the US. The show airs on Sky1 and Sky1 HD in the UK. Watch a promo for season four of Glee below:      Photo gallery - &amp;#039;Glee&amp;#039; season four character portraits:  "^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.digitalspy.com/tv/glee/news/a404119/glee-season-4-features-justin-bieber-britney-spears-tracks/>