The 'Girls' creator will be joined by musician Ben Lee and a host of guests as they analyse the warring siblings and former bandmates through their songs and readings from interviews the pair have conducted
The talk, which is aptly titled 'Champagne Superanalysis' - a nod to the Britpop group's 1995 track from the LP '(What's the Story) Morning Glory?)' - will take place on November 18 at Largo at the Coronet in Los Angeles, with tickets priced at $40.
Alongside a poster advertising the one-off event, Ben wrote on Twitter: ''What happens with @lenadunham and I join forces for a psychological exploration of the Gallagher brothers relationship? Let's find out! (sic)''
The event comes after Lena had a discussion with Ben about the Oasis documentary 'Supersonic'.
Speaking in August, the 32-year-old actress, who takes Noel's side, wrote: ''I watched the Oasis documentary and I have a LOT of big opinions about the Gallagher brothers' relationship! I'm a Noel btw!!! (sic)''
The idea for the talk came after singer Dani Wilson responded saying he would ''pay'' to see a ''staged reading'' of Liam and Noel's interviews.
He replied: ''I'd pay to see a staged reading of gallagher interviews. noel's interviews make me feel worldly-wise and liam's make me feel victorious. (sic)''
Liam - who released his debut solo LP 'As You Were' last year - and Noel have been at loggerheads for years, but things worsened between the pair when Oasis split in 2009, following a backstage bust-up at their concert in Paris, which saw Liam swing a guitar around his brother's head.
Mat Whitecross helmed 'Supersonic' in 2016, and despite their feud, both brothers took part in the film.
The documentary charted the brothers incredible rise from a council house in Burnage, Manchester, to becoming the biggest band in the world in just three years.
As well as slamming each other in interviews, Liam, 45, often uses his Twitter account to throw jibes towards his 50-year-old sibling - including calling him a ''potato'' and a ''scary clown'' - as well as on stage.
Tickets are on sale now for 'Champagne Superanalysis' from See Tickets.
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