The boys of MONSTA X performed at their first KIIS-FM 'Jingle Ball' stop at The Forum in Los Angeles, California on November 30.
Prior to their performance on the main stage at The Forum in Inglewood, MONSTA X kicked off KIIS FM's 'Jingle Ball' at the KIIS FM Jingle Ball Pre-Show Village.
After kicking things off outdoors, the boys moved indoors to perform again inside The Forum.
MONSTA X is the first K-pop group to perform at iHeartRadio's Jingle Ball Tour. The boys will be visiting 5 other cities for the 'Jingle Ball' tour, check out photos from their performance inside The Forum below.