The pop acts are honoured to be part of the first music and animal extravaganza of its kind, which will celebrate the nation's love of pets and raise funds for their care.
PDSA PetLife Festival '18 will take place at Cheltenham Racecourse in Gloucestershire, England on Sunday May 6, 2018, with all proceeds going to PDSA [People's Dispensary for Sick Animals], the UK's leading pet well-being organisation.
'Price Tag' hitmaker Jessie - who has a pooch called Jackson - said: ''Pets are a wonderful part of our lives. My French Bulldog, Jackson, makes me smile every day. As well as raising funds for a great cause, PDSA PetLife'18 combines people's love of pets and music; two of my favourite things! I simply can't wait.''
Kaiser Chiefs frontman Ricky Wilson, owner of a Labradoodle called Norman Reedus, commented: ''Two things the UK loves are pets and music, so why has no one thought of this before? We're all looking forward to PDSA PetLife'18 and raising funds and awareness for PDSA to continue its great work.''
And cat lover and owner James McVey from The Vamps added: ''My cat Mickey means the world to me.
''I know I can provide the vet care he needs, but not everyone is so fortunate and that's why PDSA is so important.
''We're all looking forward to this special gig and raising much-needed funds for such a great charity.''
Jan McLoughlin, PDSA Director General, added: ''As long as there are pets in need, there is a need for PDSA. Since we were founded 100 years ago, the world has changed so much. Yet we remain a lifeline for hundreds of thousands of the UK's most vulnerable pets - and their loving owners. Throughout our incredible history we have relied on the generosity of the public to support our invaluable work in saving, protecting and healing pets. The money we raise from events like this, alongside all of our other fundraising and awareness activity, will help ensure we can be here for vulnerable pets for the next 100 years.''
Tickets for PDSA PetLife'18 are on sale now at PetLife.org.uk.
'The Now Now' will be released on June 29th, and two new teaser tracks have appeared - 'Humility' and 'Lake Zurich'.