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Cyndi Lauper and Sara Bareilles are joining forces for a good cause.  The singers have come together to record a mash-up of their hits "True Colors" and "Brave," in support of "Today" show host's Hoda Kotb's fundraising efforts for the American Cancer Society. Their new version is called "Truly Brave." 

The song premiered on Thursday's "Today" show with a video that shows Cyndi and Sara in the studio together, as well as young cancer patients playing at the Children's Hospital in Philadelphia. 

Hoda, who survived her own battle with breast cancer, hand-picked the two singers to help raise money and awareness.   The host says she's also planning to organize a concert with the two to help lift the spirits of pediatric cancer fighters.

Check it out below: