They are rivals on the tennis court but they are actually friends.

Rafael Nadal started a foundation to help disabled children and he held a fund-raising event and invited Roger Federer.

The tennis players were then accompanied by none other than Julio Iglesias, who sang to boost the money gathered for the not-for-profit organization.

We love how Rafa and Roger spend all their time outside playing tennis, yet it’s Julio who is the darkest.