Duffy is apparently glad she doesn't look like her fraternal twin sister Katy.... Article from contact music.
Duffy Glad She Looks Nothing Like Her Twin
Pop star DUFFY is relieved she looks nothing like her twin sister KATY - because her sibling is such a troublemaker.
The Welsh singer fears the media would mix the two Duffy girls up if they were identical - and the Rockferry singer would be dubbed a party girl.
The singer, real name Aimee Ann Duffy, says of her fraternal twin, "She's a bit of a troublemaker, she's partying all the time; if we looked the same I would get into so much trouble."