We've all heard Toto's iconic song 'Africa' more than a handful of times.
It's the kind of song that can get a whole party singing along to every lyric, but a lot of people don't know the little known quirky fact of this song.
Right at the start of the song, you can hear someone laugh in the background.
It may be a little hard to hear if you're playing the song out loud on speakers, but it's loud and clear when you listen to the songs with headphones on.
It's at about 3 seconds in if you're still having trouble hearing it.
Many believe it's the laugh from either conga player Lenny Castro or Toto drummer Jeff Porcaro - but no one knows for sure.