 Lewis's last single from "Spirit", "I Will Be", was released in January 2009, only in North America.In August 2008, Lewis performed "Whole Lotta Love" with guitarist Jimmy Page of Led Zeppelin at the 2008 Summer Olympics closing ceremony in Beijing, representing the handover to London as the host of the 2012 Summer Olympics.In September 2008, she joined several female singers to perform a single for the anti-cancer campaign Stand Up to Cancer.