Here is an original a cappella cover of the Mario Circuit theme song by Youtuber Smooth McGroove.
The one-and-only iconic song from the opening race of the first Mario Kart ever made! I played this game for countless hours after it came out; solo and two-player with my brother and friends. Even though this game’s been eclipsed by every other Mario Kart in the series, I still have a blast going back and playing it for nostalgia (and the music!).