The child-stars-turned-fashionistas appeared on the program with Ellen DeGeneres to promote their two new fragrances for their Elizabeth and James collection and took the time to play a fun game of Olsen twins trivia.
Mary-Kate and Ashley, 27, held paddles reading "Me" on one side and "Her" on the other side, answering questions asked by DeGeneres.
When the talk show host asked who is the messiest, the former child stars both picked themselves, lamenting the need for a "Both" paddle. When questioned next, the Olsens couldn't remember who got kissed first but settled on Mary-Kate.
They went on to name Ashley the funniest and chose Mary-Kate as the sister who could talk her way out of a parking ticket. The Full House alums agreed that Mary-Kate is a better dancer, but abstained from the question of who is a better singer, as Ashley said, "I don't think we're very good," with Mary-Kate adding, "this one it's both bad."
The pair, whose new fragrances are called Elizabeth and James Nirvana White and Elizabeth and James Nirvana Black, also discussed the perils of being a twin. Ashley said people will ask, "Are you Mary or Kate?" Mary-Kate chimed in that she has been asked, "Are you the Ashley twins?"
Mary-Kate and Ashley explained that there are two perfumes because of their brand's focus on duality. The fragrances are available at Sephora.