That was awkward: Katy Perry and her father attend the same basketball game as ex husband Russell Brand

It's that awkward moment that nobody ever wants to happen, but it inevitably did for Katy Perry and Russell Brand.

The ex-husband and wife both turned up to watch the Los Angeles Lakers take on the Dallas Mavericks at the Staples Center, in California, on Tuesday night.

The former star crossed lovers tried to play it cool as they must have been aware that they were on a collision course to bump into each other.

Too close: Katy Perry and her father Keith Hudson went to watch a basketball match on Tuesday night, and Russell Brand was there too

No way: Russell Brand looked a little pensive during the match at the Staples Center

While Katy, 28, had some emotional support for the confrontation in the shape of her father Keith Hudson, Russell, 37, was flanked by two young boys.

Brand was certainly not dressed for the occasion and let himself down in his typically casual wear.

He wore a pair of skinny grey jeans with a sleeveless grey top and a black leather waist coat.

Oh my goodness: Katy sat open mouthed as she hung out with her father Keith Hudson

Game over: Katy looked like she had realised Russell was in the arena as she nervously bit her nails

Look over here: Katy showed her father something hilarious on the jumbotron

Just hilarious: Katy applauded wildly as many of the people around her also found the Jumbotron funny

Joining in: Katy appeared to be having fun as she watched the cheerleaders

Katy, who is currently dating musician John Mayer, looked amazing as she showed her ex exactly what he has been missing by slipping into a tight dress.

She showed off her curves in a violet leopard skin print dress and wore her hair down over her shoulders with a centre parting.

Despite her scene stealing outfit, Katy looked a little nervous as she sat biting her nails while watching the basketball game.