Lowe and Moore, who were both famously considered part of the “ Brat Pack ” of young Hollywood stars in the ’80s, also costarred in 1985’s St. Elmo’s Fire. During their conversation about the film, Ripa, 54, once again brought up Moore, 61.

Lowe and Moore were famously part of the “Brat Pack,” a group of young ’80s Hollywood It-stars, including Emilio Estevez, Anthony Michael Hall, Andrew McCarthy, Ally Sheedy, Judd Nelson, Molly Ringwald.

Rob Lowe talked about the couples that formed and broke apart while filming "St. Elmo's Fire," including his crush on Demi Moore.

Rob Lowe shared that he and Demi Moore had a "brief" romance during their days in the Brat Pack and insisted that he and his St. Elmo's Fire costar have remained friends since it ended.

Rob Lowe said that ‘hookups’ between the Brat Pack Members were ‘inevitable’ and shared that he and Demi Moore ‘briefly had a thing’

Rob Lowe and Demi Moore were members of the Brat Pack, a group of young actors who appeared together in coming-of-age films in the 80s