As of my last knowledge update in October 2023, there is no widely recognized artist by the name of David Costell in the music industry. It's possible that he may be an emerging artist or a local musician who has not gained significant national or international attention. If you have more specific information about David Costell, such as his genre or notable works, I would be happy to help you analyze his contributions to music or provide insights based on that information. Otherwise, for the latest updates on new artists, it's advisable to check music streaming platforms, social media, or music news outlets.