Music Nirvana’s “All Apologies” Gets A Bluegrass Treatment Jan 25, 2018 Facebook Twitter Pinterest WhatsApp Linkedin ReddIt Email Print Bluegrass musicians Iron Horse perform a rather uplifting version of Nirvana’s All Apologies. The bands roots go back to the late 1970s, when Tony Robertson and Ricky Rogers were charter members of the popular local group, The Next in Line.