Aubrey O’Day has made secret of her burning desire for lesbian mixmistress Samantha Ronson, but it seems the blonde’s efforts to cozy up to the celebrity spinner have ended with an epic fail, spies say.

The ex-Danity Kane singer pathetically positioned herself directly in front of Samantha Ronson’s deejay booth, where she shook and gyrated for more than an hour during the NASCAR Champion’s party at Club Lavo in Las Vegas last week. Sadly, Sam mistook her for one of the holiday decorations.

“She was doing everything to get Samantha’s attention, including grinding her derriere on the glass partition that blocked off the booth.” All to no avail — “Samantha totally ignored her.”