Who: La Roux.

Where and when: Other Stage, 5.50pm.

Dress code: Elly Jackson's clearly on a Michael Jackson tip with all the black and gold (but that white blazer will get ruined at a festival and those tight black trousers are going to be just awful in this heat – Practical Ed).

What happened: Last year this reviewer couldn't even get within three ley lines of the tent La Roux were playing in. This time, though, the electro-pop duo have been shifted up to the Other Stage, and Elly Jackson looks determined to show the crowd why. The loudest cheers are saved for In for the Kill and Bulletproof, but there are plenty of treats before the hits. Most notable is the synth makeover applied to the Rolling Stones' Under My Thumb, which sees Jackson skipping around the stage as if it's not really 32 degrees out there.

Who's watching: Considering she's a sensitive girl singing about sensitive-girl stuff, there are a surprising amount of guys in England shirts necking lager here.

High point: The rude-girl backing dancers during Bulletproof.

Low point: To say Jackson's voice splits opinion is a bit like saying that Glasto has a slight hippy vibe to it. This writer is firmly in the pro camp, but hers is a voice that works best when treated delicately. It doesn't suit belting out a cover of Heaven 17's Temptation, especially not when she's joined onstage by the gloriously sturdy pipes of Glenn Gregory himself.

In a tweet: The nervy pop star of a few years back takes another step to becoming more bullet proof