The 2008 video for Weezer's "Pork and Beans" also captured this trend, by including at least 20 YouTube celebrities; the single became the most successful of Weezer's career, in chart performance. In 2007, the RIAA issued cease-and-desist letters to YouTube users to prevent single users from sharing videos, which are the property of the music labels. After its merger with Google, YouTube assured the RIAA that they would find a way to pay royalties through a bulk agreement with the major record labels.[citation needed] This was complicated by the fact that not all labels share the same policy toward music videos: some welcome the development and upload music videos to various online outlets themselves, viewing music videos as free advertising for their artists, while other labels view music videos not as an advertisement, but as the product itself.