Drake gave the crowd in Toronto a once in a lifetime thrill when he brought out Eminem during his set at the 'October's Very Own' Festival last night (August 1).

The duo performed "Forever" as the crowd went bananas.

After the song ended, Drake told the crowd that Eminem was the "greatest of all time".

Just prior to Silm's appearance, Drizzy brought out Bun-B of UGK---AKA BUM B AKA TOO OLD AND TO FAT TO RAP!!!