Mary-Kate & Ashley Olsen Debut 'Olsenboye' on ABC

Mary-Kate and Ashley Olsen share a smile on the set of Good Morning America in New York City on Wednesday (February 3).

The 23-year-old Olsenboye designers shared their thoughts on how to have a successful business.

“Integrity – be humble,” Mary-Kate said, while Ashley added, “Surrounding ourselves with the right people who believe in the same things that we do.”

The collection, available at JC Penney starting this month, represents different cities for each season, starting with New York and L.A. and London in coming seasons!