In April last year Mumford and Sons teamed up with Edward Sharpe and the Magnetic Zeros and Nashville's Old Crow Medicine Show to undertake a remarkable train journey. The bands boarded a vintage train - which they had to themselves - and journeyed from San Francisco to New Orleans, stopping along the way to play gigs in places like San Pedro, California and Texas.
It was all captured on film and turned into a documentary called Big Easy Express which gets its world premiere at SXSW festival on March the 17th. The trailer is online at the moment and it looks like a hell of a lot of fun.
We caught up with Ted Dwane from Mumford and Sons to ask him all about it:
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