01/28/2011 10:01 am ET Updated May 25, 2011

Jeremy Piven On Miley Cyrus: 'We Had Great Chemistry'

Maybe Miley will be the next to join his Entourage?

Jeremy Piven just wrapped up filming the college spy comedy 'So Undercover' with Miley Cyrus, and was surprised just how much he enjoyed hanging out with his 18-year old co-star.

"I think I must be an 18-year-old girl because we got along really well," Piven told E! Online. "It was just so much fun. I had so much fun with her and we had great chemistry. It was really really weird--we're like polar opposites."

The fawning didn't end there. After defending Miley's salvia bong controversy, Piven said, "She's kind of amazing. There's something so incredibly refreshing about someone who is exactly who they are. There's nothing pretentious about her. She's this force. She loves to laugh."

Cyrus and Piven are joined by Kelly Osbourne in 'So Undercover,' due for a release later this year. Right now, Piven is promoting his dark comedy 'I Melt With You,' which you can find out more about by clicking over to E! Online.