No Leaf Clover is a song by thrash metal band Metallica, featuring the San Francisco Symphony Orchestra and appeared on the S&M live album (S&M short for Symphony and Metallica). It is featured in Guitar Hero: Metallica. It appears on the third tier of the game for most instruments.
Even though it is considered one of the easiest songs in the game, the guitar solo and orchestra drumming might ruin your FC if you don't watch out.