The Chemical Brothers, Alt-J and Hozier will headline this year's Longitude festival.

The festival, which is being partnered by Three, will return to Dublin's Marlay Park from July 17th, 18th and 19th. 

The Three partnership comes as a bonus to both its own and 02 customers, as tickets will be available to them before the general public.

Also on the bill are Caribou, SBTRKT, Wild Beasts, Jungle, Little Dragon, Young Fathers, Hudson Mohawke, Wolf Alice, Slaves, Girl Band, Kaytranada and Gengahr.

Hozier will headline on Friday 17th, Alt-J on Saturday 18th and The Chemical Brothers on Sunday 19th.

More will be announced in the coming weeks and months.

Tickets are on sale next Friday, January 30th; weekend tickets are €149.50 and day tickets €59.50, both inclusive of booking fee.