Like Christina Aguilera, Jennifer Lopez is refusing to confirm the endless rumours about her current pregnancy but can’t stop the people around her spreading the news instead: fashion designer Roberto Cavalli is the latest to confirm that the star is expecting her first child with husband Marc Anthony.

As well as busily working on costumes for the Spice Girls comeback, Cavalli designed the stage outfits for Jennifer’s current US tour with Marc - and he has now told People magazine that the assignment was a unique challenge: “Well Jennifer Lopez, at this moment, she requests something very special because she is waiting for the baby.”

“The thing about Jennifer Lopez, she is a singer, she is a dancer. Most of the time when I prepare something for the tour, the performer, they want something very soft so they can dance and so they can move free.”

“[But this is even more] so complicated because every week she is getting bigger.”

Jennifer’s baby is thought to be due early in the new year.