Rita Ora has been spotted kissing Diana Ross' son.

The 'Hot Right Now' singer was seen at Jonny Lennon's Funday party at Goldbar in SoHo, New York City, on Sunday (06.01.13) flirting with actor-and-musician Evan Ross.

Oblivious to who was watching, Rita moved in for a smooch with Evan in full view of the other guests.

An eye witness told the New York Post newspaper: ''They were so into each other. They took a lingering, passionate kiss.''

Although Rita spent most of the night with 24-year-old Evan - who has starred in TV series '90210' and thriller film '96 Minutes' - she still found time to dance at the bash.

Twitter user @MrSaks5th - known as Mid-Nite ‏- revealed he busted some moves with the 22-year-old pop star at the club.

He tweeted: ''Stood on couches with Rita Ora last night at GoldBar, no big deal! #FundayWasMadRealAndImStillDrunk (sic)''

Rita's romantic liaison with Evan - who has also released an album - comes after she split from Rob Kardashian.

The split turned sour after the 'Keeping Up with the Kardashians' star accused her of cheating on him with 20 other guys, one of whom is rumoured to be Jonah Hill.

In a series of angry Twitter posts, he said: ''She (Rita) cheated on me with nearly 20 dudes while we were together, I wonder how many she will sleep with now that we apart?

''I'm actually disgusted a woman could give up her body to more than 20 dudes in less than a year's time while trying to start a career.''