Cedric Martinez caused drama on Monday night's episode of Real Housewives of Beverly Hills when he showed up to Lisa Vanderpump's club opening uninvited — except RadarOnline.com has learned he was invited.

Lisa had a very public falling out with her former houseguest Cedric last year, making his appearance at the opening of SUR lounge even more awkward.

"I have no idea what you're doing here. What do you want from me that you haven't had already?" Lisa quipped.