Grant hitting the stage also remarked the triumphant return of Chef! Yes! He sang the Darkness' I Believe in a Thing Called Love. (Which practically demands multiple David Lee Rothesque aerial maneuvers).
After screaming along incoherently into an extra mic during the first half of this couple's duet, homeboy in the green shirt finally managed to wrangle away Shef's mic and hide it on him. Unfazed, Shef decided to make up for his lack of mic by just singing even louder for the remainder of their song.
Halfway through the song, he was joined by Shef, who was so drunk at this point he could hardly walk (which may explain why he choose to stay up on the stage trying to sing along with every single person until we eventually had to forceably remove him from stage).