Utilize the input text as a context reference, choose the right relationship between product and music streaming from the options. Options: product/material produced, manufacturer, distributed by, industry, position held, original broadcaster, owned by, founded by, distribution format, headquarters location, stock exchange, currency, parent organization, chief executive officer, director/manager, owner of, operator, member of, employer, chairperson, platform, subsidiary, legal form, publisher, developer, brand, business division, location of formation, creator.

Lastly, let me quickly discuss Kugou Changchang, an online karaoke product we designed to better serve Kugou Music users through integrated online music streaming and online singing.

Answer: distribution_format