and 12 Scot Ray – trombone on track 10 Ben Wendel – saxophone on track 10 Guy Hilsman – shaker on track 12 Jeff Juliano – mixing on all tracks, engineering on all tracks Peter Harding – engineering assistance on all tracks Chris Keup – pre-production on all tracks, arrangement assistance on all tracks Ted Jensen – mastering on all tracks Charts Weekly charts Year-end charts Certifications References Jason Mraz albums 2002 debut albums Albums produced by John Alagía Elektra Records albums