Foo Fighters were joined by Perry Farrell to play a cover of Jane’s Addiction’s ‘Mountain Song’ at an afterparty for the beleaguered Lollapalooza Festival on Friday (August 4).

Although Foo Fighters weren’t on the bill for the annual Chicago festival, they hit town at the last minute to play a mammoth 32-song set at the 1,100 capacity Chicago Metro, making up somewhat for the disappointment of Muse’s set being cut short due to thunderstorms at the festival on Thursday night.

Midway through the set, Dave Grohl introduced Perry Farrell – a co-founder of the Lollapalooza festival, which began life in 1990 as a touring festival before settling in Chicago in 2005 – as "the one person responsible for that revolution in music… thank god for that first Lollapalooza”. Farrell then sang ‘Mountain People’, a song he’s performed several times with the Foo Fighters. You can watch the performance below.

Foo Fighters also previewed five songs from their forthcoming ninth album ‘Concrete And Gold’, including ‘Run’, ‘The Sky Is A Neighbourhood’, ‘Sunday Rain’, ‘La Dee Da’ and ‘Dirty Water’.

Foo Fighters return to Europe to play at Lollapalooza Berlin in September, followed by a date at the O2 in London. Check here for ticket information