Marie Kristin Gabert is a German professional wrestler and former professional powerlifter, strongwoman, bodybuilder, and mixed martial artist under the names Alpha Female and Jazzy Gabert. She is best known on the independent scene, where she has wrestled for World Wonder Ring Stardom and Impact Wrestling (TNA).

World Wonder Ring Stardom , often referred to simply as Stardom, is a Japanese joshi puroresu or women's professional wrestling promotion based in Nakano, Tokyo, Japan. Stardom was founded in September 2010 by former All Japan Women's Pro-Wrestling (AJW) co-producer Rossy Ogawa, retired professional wrestler and mixed martial artist Fuka Kakimoto, and former AJW veteran professional wrestler Nanae Takahashi. Stardom is currently owned by Japanese entertainment company Bushiroad, making it the sister promotion of New Japan Pro-Wrestling (NJPW).