The Foo Fighters are sharing their cover of a Bee Gees song. While appearing on BBC Radio 2's Sofa Sessions, they played their songs "Waiting on a War," "All My Life" and the Bee Gees' "You Should Be Dancing." Frontman Dave Grohl said the band decided to cover the song after recently watching Bee Gees' documentary "How Can You Mend a Broken Heart." Grohl revealed it was the easiest song he's ever sang. He joked he should have been singing like that for the last 25 years.