Hilary Duff & Mike Comrie Get Close Backstage at Coachella 2014!

Hilary Duff hangs out backstage at the City and Colour show during Day 2 of the 2014 Coachella Music Festival on Saturday (April 12) in Indio, Calif.

The 26-year-old actress was joined by her separated husband Mike Comrie.

PHOTOS: Check out the latest pics of Hilary Duff

Despite their appearance together, Hilary and Mike are not back together.

“They are still separated but very good friends,” a source told People. “They are at Coachella this weekend, which is sure to fan the flames, but they aren’t a couple. It’s just not true – they remain separated.”

15+ pictures inside of Hilary Duff & Mike Comrie at the second day of Coachella together…