Lady Gaga has reportedly split from her longtime manager, Troy Carter .
Multiple sources tell Us Weekly the two have parted ways due to "creative differences."
A source close to both tells the magazine, "It's sad but also liberating at the same time," adding, "One door closes and another opens."
Carter helped launch Gaga's career after signing her in 2007. He earned an Emmy Award nomination in 2011 for his work on the HBO special Lady Gaga Presents the Monster Ball Tour: At Madison Square Garden .
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