FIREFLYFirefly Music Festival 2018 lineupKENDRICK LAMAR returns to Firefly in 2018. Kendrick Lamar performs on The Lawn stage at Firefly Music Festival June 22, 2013.SUCHAT PEDERSON/THE NEWS JOURNAL, SUCHAT PEDERSON/THE NEWS JOURNALEMINEM at Lollapalooza in Chicago's Grant Park in 2014Steve C Mitchell/Invision/APSZA makes her Firefly Music Festival debut in 2018.Steve Jennings, Getty Images For VevoARCTIC MONKEYS return to Firefly in 2018. Alex Turner performs with the Arctic Monkeys at the Firefly Music Festival in Dover on June 20, 2014.KYLE GRANTHAM/THE NEWS JOURNAL, KYLE GRANTHAM/THE NEWS JOURNALThe Killers perform at the Firefly Festival in Dover, DE on Saturday, July 21st, 2012.Matt Urban/Special To The News JournalFOSTER THE PEOPLE return to Firefly in 2018. They also played in 2013.SUCHAT PEDERSON/THE NEWS JOURNAL, SUCHAT PEDERSON/THE NEWS JOURNALPORTUGAL. THE MAN returns to Firefly in 2018. Portugal at Bonnaroo Music and Arts Festival in Manchester, Tenn, in 2017.Ian Stanford / The Tennessean, Ian Stanford / The TennesseanODESZA comes to Firefly this year. Clayton Knight of ODESZA preforms at SXSW in 2015 in Austin, Texas.Robin Marchant, Getty Images For Tumblr