Kanye West and Kim Kardashian are accusing a YouTube co-founder of illegally publishing video of their engagement party to boost his new “foundering” website.

A lawsuit filed Thursday by the celebrity couple blasts Chad Hurley, accusing him of secretly recording West’s surprise proposal to Kardashian in the middle of San Francisco’s AT&TPark on October 21.

The video shows West kneeling near second base to ask Kardashian to marry him while a large orchestra plays in center field.

Hurley “finagled entry” into the birthday party that West threw for his girlfriend, although only “several dozen people” were invited, the lawsuit said. Although he tagged along with someone who was invited, he was permitted to stay “only after giving his word — including in writing — that he would not publish any aspect of the event.” The court filing includes a photo of Hurley purportedly holding the signed confidentiality agreement in his hand.

The video is titled “PLEEESE MARRY MEEE!!! Congrats Kim and Kanye!”

It is still posted on the website, and the counter indicates it has been viewed 1.6 million times.

Hurley and his company did not immediately respond to CNN requests for comment on the lawsuit.