This year's big Grammy winner will be headlining this year's Lollapalooza.

Mumford & Sons, whose album Babel won Album of the Year last month at the Grammy Awards, will headline the Chicago festival this august, along with The Killers, Phoenix and Vampire Weekend, according to the Chicago Tribune.

The newspaper further reports that Postal Service -- consisting of Death Cab for Cutie frontman Ben Gibbard and electronic artist Jimmy Tamborello -- and The National are also on the bill.

Billboard recently reported that Nine Inch Nails will take part in Lollapalooza, which will be held August 2-4.

An official announcement from Lollapalooza organizers isn't expected until next month.

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