Keane are to headline Wales' first major music festival this summer.
Fflam, the Welsh word for flame, aims to be the country's equivalent of Scotland's hugely successful T In The Park.
Placebo will headline on Saturday and other acts confirmed so far include Manic Street Preachers, Levellers, Feeder and new group Enter Shakira.
Sunday night's main artist is to be announced in the next few weeks and more than 50 bands will play across the three-day festival, which is expected to be attended by 30,000 music fans.
Nicky Wire from Welsh group Manic Street Preachers, said that it would be "good to be back in Swansea".
Alongside the heavyweight bands will be three unsigned acts as a competition is being launched to find three new Welsh acts to perform at the festival on the main stage. Runners-up will play on the festival's talent stage.
Festival promoter John Curd of Straight Music said: "As well as giving locals the chance to see some of the best live bands around, we are also dedicated to nurturing new talent and the full line up will reflect that."
Gerald Clement, Swansea council's cabinet member for culture, recreation and tourism, said that the line-up will "certainly put Swansea on the UK's top festivals map".
"This is an excellent opportunity, to not only showcase Swansea, but also Wales, as the line-up has such national appeal," he added.
Fflam will take place at Swansea's Singleton Park from Friday July 13th to Sunday July 15th. Tickets go on sale on today.