Lady Gaga is reportedly furious with Kim Kardashian after learning that the reality TV star recently pursued the singer's personal stylist for business dealings.
Nicola Formichetti, a world renowned fashion designer, was reportedly approached to begin working for Kardashian, 31, shortly after Gaga, whose real name is Stefani Germanotta, was hospitalized to undergo hip surgery. Kardashian allegedly bombarded Formichetti with emails and her persistence reportedly paid off.
"Gaga was fuming when she discovered Nicola was working with Kim," a source told Ahlan! magazine. "She's fiercely protective of the people she works with and she's always been determined to have Nicola all to herself."
In February Gaga, 26, was forced to cancel the remainder of her US "Born This Way" tour due to a labral tear of her right hip which left her unable to walk. The Grammy award-winning singer recently described the health scare as "a bump in the road."
"As they wheeled me into surgery...I thought about all of your pain and perseverance, your unique family situations, school environments, health issues, homelessness, identity struggles," Gaga wrote in a personal blog post.
"So I thought to myself, 'I'm alive; I'm living my dream, and this is just a bump in the road,'" she added.
Kardashian, who is pregnant with her first child, has not addressed the feud reports. Formichetti recently admitted that working for the reality TV star is not easy.
Kardashian recently posed for an Elle magazine photo shoot and Formichetti revealed that he had difficulty getting designers to lend her their clothes.
"People wouldn't lend me the clothes," Formichetti told RadarOnline.com. "But that's fashion snobbery."