Two Door Cinema Club have been announced as the headliner's for this year's event.
The track is the band's first new music since their debut EP - watch the music video here.
Festival Republic have also announced that they are to fund a new research project within Music Declares Emergency.
'Baby' is taken from the band's recently released debut EP, 'Baby Shack'.
The single is another glimpse into the band's upcoming debut EP, 'Baby Shack'.
The Cardiff four-piece will release 'Baby Shack' in April - find out more here.
The track is the band's third single of 2020, following 'Who's Got My Lighter?' and 'Jiu Jits-You'.