What is the fine-grained topic of the following text: You’ve probably seen her playing cello and singing in the background with many of your favorite artists including Michael W. Smith, Francesca Battistelli, Lauren Daigle, Crowder, Big Daddy Weave, Tauren Wells, Judah & the Lion, Jason Gray, Aaron Shust, Andrew Ripp and more. Only return the topic.
A female cellist's collaborations with various artists