Heidi Klum's son designs T-shirt collection

Heidi Klum is releasing a range of T-shirts designed by her six-year-old son.

The German beauty has created the Truly Scrumptious by Heidi Klum collection for the Babies 'R' Us chain and her latest line for the brand features "monster themed" tops created by her little boy Johan.

Klum tells WWD.com, "Johan is super creative, and I knew I wanted to incorporate his whimsical and imaginative designs into my Truly Scrumptious collection in a very special way. I'm so proud as a mum and a designer to introduce this one-of-a-kind assortment of T-shirts to Babies 'R' Us customers."

The T-shirts have been launched to help raise awareness of the Save the Children charity.

Johan's father is singer Klum's estranged husband Seal. The couple filed for divorce last year (12).