All hail Courtney Barnett. This chick just keeps on bringing it, and it gets bigger and better each time. Last night Barnett and her band performed 'Pedestrian At Best' on The Tonight Show Starring Jimmy Fallon. The single is from her refreshing debut Sometimes I Sit and Think, and Sometimes I Just Sit.

Donning her finest Chastity Belt tee (which she's been wearing quite a bit lately), she smashed out an energetic performance that screamed - 'I'm pretty huge now and I still don't give a fuck because I'm just really chilled'. Well, something like that. It was great. So was the lighting.

Check it out below. Courtney Barnett plays Glastonbury next week, followed by a bunch of summer festivals including Green Man on 23rd August.