MONSTA X spotted putting on a surprise joint stage with The Chainsmokers at '2018 KIIS-FM Jingle Ball' tour in Boston

Back on December 4, MONSTA X successfully wrapped up the Boston stop of the '2018 KIIS-FM Jingle Ball tour'!

During this event, even before it was their turn to emerge on stage, MONSTA X surprised the audience by appearing for a surprise joint stage with EDM duo, The Chainsmokers! MONSTA X and The Chainsmokers partnered up for The Chainsmokers's hit track "Something Just Like This", fulfilling the MONSTA X boys' longtime wish to work with the American duo.

Tonight (December 5), MONSTA X plan on stopping in Philadelphia for the next spot of their 'Jingle Ball' tour lineup. Check out some photos from the Boston show below.