Organisers of Hertfordshire music festival Standon Calling 2017 are set to reveal the latest line-up additions – with more than 20 acts to be confirmed in the second announcement.

The independent music and arts festival returns to the grounds of Standon Lordship from Thursday, July 27 to Sunday, July 30.

Orbital and chart-topping Rockabye band Clean Bandit have already been announced as main stage headliners for this summer’s festival.

And an email sent out yesterday (Saturday) by Standon promoters revealed that new additions to the 2017 line-up will be “coming soon”.

The newsletter said: “Not long to wait now until we add over twenty brilliant musicians to our 2017 line-up.

“Whether you’re into rock, pop, folk, house or even spoken word we think you’ll be pretty happy with our second wave of acts.

“Our third and final Very Special Headliner, will be announced shortly after.”

https://twitter.com/StandonCalling/status/838706841769107456

Standon Calling confirmed on its Twitter feed that the final headliner will be announced “definitely before end of March”.

This year’s festival theme has been confirmed as Tales of the Enchanted Valley.

https://www.instagram.com/p/BQkqLkzlwEt/?taken-by=standoncalling

The Standon Calling family entertainment was also announced last week, with Horrible Histories opening the main stage on Saturday, July 29 with a special one hour production.

Tier Two tickets for Standon Calling are selling quicker than ever before.

https://twitter.com/StandonCalling/status/837665684381401093

• To book tickets for the festival, visit www.standon-calling.com