John Mayer, Jimmy Kimmel and Jeff Ross took over hosting duties for their late friend Wednesday at an annual fundraiser for the Scleroderma Research Foundation, with the event raising $1.2 million for crucial research.

Bob hosted SRF's signature event, "Cool Comedy • Hot Cuisine," for 30 years before his death ...

and this year's fundraiser featured a special video tribute to Bob, presented by John Stamos and Mike Binder.