On 25 May 2005, Adams raised £1.3M with cousin Johnny Armitage, from a concert and auction entitled Rock by the River for the Royal Marsden Hospital in London. On 15 May 2006, Adams returned to London to attend the Hope Foundation's event (hosted by designer Bella Freud), helping to raise a portion of the £250,000 to support the Palestinian refugee children. The following June, he offered individuals from the public the chance to bid to sing with him live in concert at three different charity auctions in London. Over £50,000 was raised with money going to the NSPCC, Children in Need, and the University College Hospital. On 28 February 2008, he appeared in One Night Live at the Air Canada Centre in Toronto with Josh Groban, Sarah McLachlan, Jann Arden, and RyanDan in aid of the Sunnybrook Hospital Women and Babies Program.