Chris Martin paid tribute to Vice President Joe Biden’s son Beau Biden, who died of brain cancer last week, during his funeral Saturday.

Martin volunteered to perform at Biden’s funeral service in Wilmington, Delaware, when he found out that the former Delaware attorney general was a big Coldplay fan, according to a White House official. Martin performed an acoustic version of Coldplay’s “Til Kingdom Come” near the end of the service. Afterwards, Martin hugged the vice president and his wife, Jill Biden.

Earlier during the ceremony, President Barack Obama gave an emotional eulogy, praising the former attorney general. “Beau Biden was an original,” Obama said at the St. Anthony of Padua Roman Catholic Church. “He was a good man, a man of character, a man who loved deeply and was loved in return.”

Joseph “Beau” Biden III was first diagnosed with brain cancer in 2013, three years after suffering a minor stroke. He died at age 46.

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