. The legendary musician was joined on stage by surprise-guest Bruce Springsteen to celebrate the occasion. Visit the link in our bio to look back at 40 years of the Piano Man at #MSG. _ 📷: Myrna M. Suarez/WireImage/Getty Images | #BillyJoel #PianoMan #BillyJoelMSG #madisonsquaregarden #TheGarden