Massive Attack, Iggy Pop, Young Fathers and more have joined the line-up for this year's Flow Festival, Gigwise said.

The Helsinki festival had already announced the likes of Sia, New Order, The Last Shadow Puppets and Chvrches, but now a handful of other huge acts have joined their ranks.

As well Massive Attack, Iggy Pop and Young Fathers, acts such as Sleaford Mods, Thundercat, Lil B, Floating Points and Liima will also perform.

Flow Festival takes place in Helsinki between 12 and 14 August. See the full line-up below.

Ata Kak // Chvrches // Descendents // Floating Points // Four Tet // Hercules & Love Affair // Holly Herndon // Iggy Pop // Jamie XX // John Talabot // Kamasi Washington // Liima // Lil B // Massive Attack + Young Fathers // M83 // New Order // Phuture Live (DJ Pierre + Spanky) // Roman Flügel // Shackleton Presents “Powerplant” // Sia // Sleaford Mods // Stormzy // The Black Madonna // Thee Oh Sees // The Last Shadow Puppets // Thundercat // Wooden Wisdom & DJ Fitz