The band have just pointed this out on Twitter from their Rock Ness live report:

http://www.clashmusic.com/news/dan-le-sac-rockness
"On the main stage Sky Larkin unveil tracks from their second album. Due out on Wichita later this year, the Sheffield based trio look to have something special on their hands.

Blasting through new material, the Northern indie titans seem assured with the new tracks. Mixing old favourites with unheard material, the indie group build up anticipation for their new record."

Sky Larkin aren't playing Rock Ness.