Guess Spring 2018 Campaign Reveal Starring, Jennifer Lopez Published February 1, 2018 at 3688 × 4696 in GUESS Celebrates Jennifer Lopez – The Newest Guess Girl LOS ANGELES, CA – JANUARY 31: (L-R) Eric Bigger, Corinne Olympus, Demario Jackson at the Guess Spring 2018 Campaign Reveal starring Jennifer Lopez on January 31, 2018 in Los Angeles, California.