Chicago XXXVII: Chicago Christmas

Chicago XXXVII: Chicago Christmas, also known as simply Chicago Christmas, is the twenty-fifth studio album, the fourth collection of Christmas songs, and thirty-seventh album overall by the American rock band Chicago. The album was released on October 11, 2019. The project grew out of a plan to record a few new bonus tracks for a re-release of one of the band's prior holiday albums. Unlike previous Christmas albums, Chicago Christmas features primarily original material, written by members of the band. The only non-original songs on the album are "What the World Needs Now Is Love", "Sleigh Ride (2019)", and "Here We Come a Caroling". Chicago Christmas reached number one on the Billboard Holiday Albums Sales Chart.

Chicago Christmas reflects several personnel changes in the band's lineup since their previous studio release from 2014, Chicago XXXVI: Now. This is their first studio album for singer Neil Donell and bassist Brett Simons. It is also the first studio album since Walfredo Reyes Jr. moved from percussion to drums, with his previous position being filled by Ramon Yslas. Additionally, this is the first Chicago album since the 2017 retirement of saxophonist Walter Parazaider, who was replaced by Ray Herrmann.

Personnel
Adapted from the album liner notes.

Chicago
 * Robert Lamm – keyboards, lead and backing vocals, horn arrangements
 * Lee Loughnane – trumpet, backing vocals
 * James Pankow – trombone, backing vocals, horn arrangements
 * Keith Howland – guitars, backing vocals
 * Lou Pardini – keyboards, lead and backing vocals
 * Walfredo Reyes Jr. – drums, percussion
 * Ray Herrmann – saxophones, flute, clarinet, backing vocals, horn arrangements
 * Neil Donell – lead and backing vocals
 * Brett Simons – bass, backing vocals
 * Ramon Yslas – percussion

Additional musicians
 * Nick Lane – horn arrangements
 * Tim Jessup – string arrangements

Production

 * Lee Loughnane – producer
 * Tim Jessup – recording, mixing
 * Scott Koopman – basic track recording
 * Adam Ayan – mastering
 * Matthew Pardini – cover artwork