But chain-smoking was just the beginning of the twins' partying days. In 2005, Mary-Kate was caught being carried out of the British rockers' dressing room after attending their gig at Madison Square Garden. According to Page Six, she was spotted being carried out of the room by her bodyguard and recovering in the V.I.P. bathroom. As for Ashley, the reports never mentioned her, so she was probably off doing her own thing. She didn't party as much as her sister.