Melissa Etheridge "considered" using Brad Pitt as a sperm donor.

Melissa Etheridge and wife Linda Wallem

Melissa Etheridge and wife Linda Wallem

The 54-year-old singer was close friends with the 'Moneyball' actor when she and then-partner Julie Cypher wanted to have children, but they decided against having him help them conceive their kids because they could see how badly he wanted to be a father himself.

Melissa said: "Well actually, [Brad] was such a good friend of mine. And we did consider it.

"And yet, I looked and I saw how badly he wanted children and I thought, 'I don't want to share this with someone who really, badly wants children because my children don't need another parent -- they have two.' "

Instead of Brad - who now raises six children with wife Angelina Jolie - the former couple's children Bailey, now 18, and Beckett, 17, were fathered by musician David Crosby and Melissa thinks he was the right choice.

She said: "It's one of the reasons why David Crosby and his wife are so perfect -- because they (already) had children. They were looking to do this as a gift. And my children are lovely and gorgeous anyway."

But Melissa - who is now married to Linda Wallem - admitted her sons joke they wish the Hollywood hunk was their real dad.

Speaking to Angela Bishop on 'Studio 10', she said: "Of course, my teenagers now are like, 'I could have had Brad Pitt [as my dad]!' My son said, 'I could've been amazingly handsome!' "