We think we know Philly Mayor Michael Nutter’s favorite karaoke song.

Mayor Nutter joined The Roots for the Philly Fourth of July Jam on Saturday night for a surprise performance of the Sugarhill Gang hit "Rapper's Delight." Despite some technical difficulties in the beginning, Nutter entertainingly rapped the song with surprising ease and even dropped the mic at the end like a boss.

This wasn’t the first time Mayor Nutter performed this song; he did it at both his 2008 and 2012 inaugural ball.

Unfortunately (or fortunately depending on how you felt about the performance), this will most likely be Mayor Nutter’s last public performance of "Rapper's Delight" since this is his last term as Mayor of Philadelphia.