By Breaking Celebrity News Staff

Joe Jonas told Ryan Seacrest Monday that he and Twilight beauty Ashley Greene have not rekindled their flame, despite being seen together at a major music event last month.

The singer and actress were an item from the summer of 2010 until their split this past March. Seacrest asked the 22-year-old heartthrob about the rumors he and his ex hooked up at Jay-Z's afterparty following last month's iHeartRadio Festival in Las Vegas.

"Hooked up? I’m sorry to disappoint all those ‘Jashley’ fans, me and Ashley are still good friends and we talk quite a bit," he explained, adding that he bumped into Greene in Sin City a few times out of sheer coincidence -- "nothing romantic," he said.

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Jonas said, "Hooking up -- if you're talking about making out -- that, unfortunately, didn’t happen.”

Seacrest also prodded Jonas for his reaction to actress Olivia Wilde's story that after she moved into the house Jonas and his brothers used to live in, her