Reporter Laura Holson joins J.D. and El Kaiser to discuss celebrities and their tech startups. Despite an impressive roster of artists, Jay Z’s Tidal music service appears to be struggling against more established services like Spotify and Pandora. Is it a failed vanity project, a callous moneygrab by some very rich pop music performers or a sincere effort to make the distribution of digital streaming royalties more equitable for all performers? It may very well be a mix of all three. (Or maybe it’s just musical Goop.)