Where and when: John Peel stage, 4pm, Saturday.

Dress code: Neon pink girl-next-door dress for her; Hurts suits for him.

What happened: The cameras home in on Ellie Rowsell’s mud-caked boots, evidence that London’s Wolf Alice, when the going gets slurpy, are not afraid to get stuck in. Guitar rock’s meatiest new hope attack indie’s back pages with a similar ferociousness, She and Storms channelling grunge-pop glories such as the Breeders, Belly, Hole, the more aggressive end of shoegazing and the industro space goth of – remember them? – Curve. Melodic and savage in equal measure, these are sweet-toothed tunes doused in acidic bitterness, like hydrochloric bonbons.

It’s difficult to tell just how seriously Wolf Alice take themselves – their aesthetic is sour and glowering yet they’re happy to cross-dress in the spoof talent-show video for Moaning Lisa Smile, and today Rowsell is a vision in baby-doll pink. But for added festival impact they keep their sparser moments to a minimum, with only Blush delving into spectral coos and euphoric guitars presumably plugged into Expanding Galaxy pedals. For the rest, they thrash out motorik Primal Scream grinds and Metallica tribute riffs on Jam, rough up 12-bar rock’n’roll on Bros and generally prove themselves all-round indie saviours.

Best bit: Finishing Fluffy in a flurry of head banging and fret abuse the band, as one, drop their instruments and crowd-surf away into John Peel stage legend.

Worst bit: When Ellie’s vocals on a cover of Chris Isaak’s Wicked Game seem to predict an inevitable solo career in C&W.

In a tweet: Why Alice, what big tunes you have …