They will join the likes of Emeli Sande, Fun., Paul Weller and Ellie Goulding at the event in June.
Lawson and Ke$ha have joined the line-up for the Isle Of Wight festival, which takes place this summer.
The event runs from the 14th-16th June at Seaclose Park.
Lawson, who are currently preparing to release their new single 'Learn To Love Again', and Ke$ha are among a host of new acts who have been confirmed for the line-up, including Paul Weller and Willy Mason.
The Isle Of Wight festival will be headlined by The Stone Roses, The Killers and Bon Jovi.
Other artists already on the line-up include Emeli Sande, Fun., Ellie Goulding and The Script.
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