“The Vampire Diaries” stars, Ian Somerhalder and Nina Dobrev, were seen on a double date with Joshua Jackson and Diane Kruger during the second day of the 2011 Coachella Valley Music and Arts Festival in Indio, California on Saturday (April 16)- more pictures below.

The 22 year-old actress and 32 year-old actor continue to ignore the romance rumors as they enjoyed each other company in a very public place with lots of paparazzi around. Ian and Nina apparently had a great time.

Ian tweeted, “Airline delay in ATL! Dammit! Missing chemical brothers tonight at coachella:( enjoy coachella peeps. Coachella… Ahhhhhh. In the dessert,very happy to be here.”

Nina tweeted, “Coachella here we come !! @armaniexchange @944 the party#neoncarnival is gonna insane! Wooooooooo!!!!! Soooo stoked!!! Arcade fire just BLEW MY MIND!!!”

The two forgot to mention they actually went together. It’s no big deal, but since they work together, why not just mention Damon and Elena/Katherine are out enjoying Coachella? BOO.

UPDATE: According to Gossip Teen, Nina denied romance rumors in recent interview for Teen Vogue. She said, “We expected the rumors. Like, if I wasn’t dating Ian, I’d be dating Paul [Wesley]. A lot of people who work together end up dating, so it wouldn’t be unusual, but I’ve never dated anyone I’ve worked with.”

Nina Dobrev & Ian Somerhalder At 2011 Coachella Pictures

[images: Winning/wenn.com]