 Complete the following phrase:  On 25 March 2007, Taupin made a surprise appearance at Johns 60th birthday celebration at Madison Square Garden, briefly discussing their 40-year songwriting partnership. Of Taupins importance to their careers, as recorded on the Elton 60 - Live at Madison Square Garden DVD, John told the audience that without Taupin there probably would not be an Elton John as the public has come to know him. Taupin and John also composed several songs for The Union, a collaboration album between Elton and his longtime hero Leon Russell released in October 2010. They also collaborated on five original songs for the 2011 Miramax movie Gnomeo and Juliet, including the 