Musician Rita Ora — recently split from Rob Kardashian, who accused her on Twitter of “messing with more than 20 men” — is now getting cozy with Evan Ross, son of Diana Ross, says a source. The duo were spotted at Jonny Lennon’s Funday party at Goldbar in SoHo on Sunday. “They were so into each other. They took a lingering, passionate kiss,” says a witness. Ross is one of the men whom Ora was rumored to have been seeing while dating Kardashian. Their reps did not respond for comment.