Fergie's Horrrrrendous Tune!

The students at LA's San Fernando High School probably weren't alive when 'Sweet Child O' Mine' was a hit song for Guns N' Roses in 1987. But that didn't stop Fergie from the Black Eyed Peas from belting out her own rendition for them on Thursday and it was... Interesting.

Listen to it CLICK HERE

Source: TMZ