Rihanna and Rita Ora have been compared by a number of critics for similar vocal techniques and fashion sense, and apparently they have similar taste in men too. The Bajan songstress was spotted hanging out with Ora's rumored boyfriend Rob Kardashian on Saturday night (Aug. 25).

Kardashian and Rihanna spent some time racing go-karts at Racers Edge Indoor Karting in Burbank, Calif. The "Umbrella" singer was the more accomplished racer according to the Daily Mail, finishing ahead of her male companion by a long shot.

The pair continued their hang out session with a visit to party at Playhouse in Hollywood, where an irate Rihanna flipped off the paparazzi. The two arrived separately so perhaps she didn't want them to be noticed together.

Regardless, Ora, whose debut album of the same name debuts overseas this week, was seen having a good night herself recently. However, it wasn't with Kardashian. She was spotted leaving London club Mahiki with Harley "Sylvester" Alexander-Sule of British hip-hop group Rizzle Kicks.

So maybe Ora and the "Keeping Up With the Kardashians" star are no longer an item after all.