The musical stars will perform at the free entry LIMF Summer Jam, which is being held as part of the broader third annual festival aiming to celebrate the city's cultural diversities and music heritage.
As well as the dance music duo, 26-year-old producer Labrinth and 'Green Garden' hitmaker Laura, local talents Echo & the Bunnymen will perform at the event in Sefton Park, along with 'Lights On' singer Katy B, chart-topping DJ Naughty Boy and rising star Becky Hill.
Speaking about the event, Becky said: ''I'm really excited to be announced as part of the Liverpool International Music Festival this year! Can't wait to play in Liverpool again alongside such brilliant acts.''
Other artists set to perform include Bipolar Sunshine and Rae Morris, who released her debut album 'Unguarded' last month.
Mayor of Liverpool, Joe Anderson, said: ''The 2015 LIMF line-up is testament to the success of this event after just two years. The number of high calibre, diverse acts is staggering and I'm positive the Summer Jam element in Sefton Park is unrivalled anywhere else in Europe - what other city stages household-name music acts and up and coming talent in the beautiful surroundings of a Grade I park and all for free?''
Further information about LIMF including the other events taking place can be found on the official website http://www.limfestival.com/
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