This year, we’ve seen Beyoncé offer support to hurricane victims through charitable songs, telethon participation, volunteering, and calls to action for donating. Now, she, joined by Pharrell, is extending her altruism to others.

The singer is auctioning off the iconic (and now autographed) wide-brimmed felt hat from her Formation Tour, for which proceeds will go to The Lung Transplant Project. The organization raises money for research that will decrease the time spent on lung transplant waiting lists and increase long-term survival rates. Signed “All my love, Beyonce,” the hat is currently going for $2,200.

Pharrell is also auctioning a pair of Hu NMDs (size 9) from his collaboration with Adidas to benefit the same project. The hot pink-colored set have been signed by the super-producer with his initials and phrases including “women’s rights,” “let the universe in,” “please don’t make excuses,” “we are nothing without God,” and “the universe is one.” The sneakers also boast the Japanese characters for “friends” and “family.” They are currently going for $1,100

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