Kim Kardashian and Kanye West are suing YouTube co-founder Chad Hurley.

The Keeping Up with the Kardashians star and the rapper claim the billionaire "manipulated" his way into AT&T Park in San Francisco and released unauthorized footage of the moment the "New Slaves" hitmaker proposed to her on her 33rd birthday on October 21.

According to court documents, obtained by gossip website TMZ.com, the couple are accusing Hurley of scheming to post the video of the intimate moment on his new Internet venture, MixBit. Their lawyer Eric George also trashes the entrepreneur, claiming Hurley is desperate to find a "second act" because two of his other businesses have flopped since he sold YouTube for $1.65 billion.

It was previously reported that Kanye invited Kim's close family and friends, along with several well known Silicon Valley founders to watch his surprise proposal, but Hurley wasn't invited and they only let him stay after he signed a confidentiality agreement. They attached a picture of him holding the agreement to the lawsuit, which also states, "Hurley proceeded to try to turn the event into one starring himself, broadcasting the images he knew were the exclusive property rights of someone else."

The couple are suing Hurley, who released a press release about the video and tweeted it to his followers, for unspecified damages and claim the footage was intended to be shown on M C Cable Television, which is an arm of Bunim/Murray and E!, which produces and broadcasts Kim's reality show.

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