One high school in the north suburbs is really twinning.
New Trier High School is in the Guinness Book of World Records for having so many twins, plus a set of triplets, in one class.
Rosie Kyriakopoulos and friends bask in the spotlight. These stars born 15 years ago in sets of two and three revel in this moment of fame.
"I've never really been part of something like this... and I'm like famous, so I'm happy," Rosie said.
Along with her twin sister Maria, the duo is among 44 sets of twins and one set of triplets in New Trier High School's sophomore class.
Three sets are identical, most are girls and at least some think they have a built in best friend.
Nearly one in ten kids in the sophomore class is a multiple -- that's about 3 times the national average for twins.
These sophomores now hold two Guinness Book of World records -- for the most twins and most multiples in a class.