Waterparks have shared their second single of 2021, ‘Numb’.The raucous track, released on Monday (March 29), follows on from February’s ‘Snow Globe’ and last September’s ‘Lowkey As Hell’. All three songs are set to appear on ‘Greatest Hits’, the band’s fourth studio album.Frontman Awsten Knight wrote the song, and also served as its co-producer alongside Zakk Cervini.