Beau Biden
In June 2015, Martin performed "Til Kingdom Come" at the funeral Mass of Beau Biden, son of United States Vice-President Joe Biden, after learning that Biden was a fan of his. In August 2017, Martin performed a live solo piano rendition of "Crawling" by Linkin Park. The performance was a tribute to Linkin Park's lead singer Chester Bennington, who died by suicide the previous month.