WEST HOLLYWOOD, CA - SEPTEMBER 16: Singer/songwriter Andy Grammer (L) and dancer Allison Holker attend PEOPLE's Ones To Watch Event on September 16, 2015 in West Hollywood, California. (Photo by Jason Kempin/Getty Images for PEOPLE)
WEST HOLLYWOOD, CA - SEPTEMBER 16: Singer/songwriter Andy Grammer (L) and dancer Allison Holker attend PEOPLE's Ones To Watch Event on September 16, 2015 in West Hollywood, California. (Photo by Jason Kempin/Getty Images for PEOPLE)