Are Rihanna & Usher More Than Just Friends?

Did the desert heat at Coachella spark a connection between Rihanna & Usher? The folks at OK! magazine seem to think so. Both Usher & Rihanna attended the Armani Exchange A|X and 944 magazine party — called the “Neon Carnival,” and here’s what went down:

“Usher requested a table next to Rihanna,” an insider tells OK!. “She arrived before Usher, with her bodyguards. Then a bit later Usher and his entourage arrived.”
The duo mingled for the whole night, and their connection turned into a fun competition!
“Usher and Rihanna were having a dance off,” the source adds. “The crowd was going crazy, circling around them and cheering them on, with members of each celeb’s crew jumping in to take a turn.”
Another source close to the duo tells OK! exclusively, “They’re romantically interested in each other.”
I wonder what Usher’s girl Grace Miguel thinks about this!!!