It seems that Heidi Montag and Lady Gaga are not friends.

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On Monday, Montag appeared on “The Unpopular with Jacques Peterson” podcast.

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She accused Lady Gaga of sabotaging her music career ahead of her 2010 debut album.

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However, producers for the 2009’s “Confessions of a Shopaholic” expressed interest in using the song.

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At that point, Montag claims that Gaga took the song back and released it herself.

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She also claimed that Gaga insisted their shared producer, RedOne, could not work with Montag anymore.

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Lady Gaga has yet to respond to these allegations.

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