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"ABBA have unveiled a previously unreleased TV performance exclusively on Digital Spy.  The group perform their hit song &amp;#039;Mamma Mia&amp;#039; in the clip, which was first aired on Top of the Pops in 1976.  Watch the footage below:  Video Platform Video Management Video Solutions Video Player      The clip features on the re-release of their 1975 album ABBA, which is out on November 19.  The deluxe set includes 60 minutes of previously unreleased television performances as well as their 1976 television special in Australia, which originally garnered higher ratings in the country than the moon landing.  The set also features remastered versions of all the tracks, including singles &amp;#039;SOS&amp;#039; and &amp;#039;Bang-A-Boomerang&amp;#039;, as well as three bonus songs.  A 24-page booklet, featuring an extensive essay on the making of the album, also accompanies the release.  ABBA originally peaked at number 13 in the UK upon its release, selling over 100,000 copies.  Click here to pre-order ABBA. "^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.digitalspy.com/music/news/a437807/abba-unveil-previously-unreleased-top-of-the-pops-performance/>