Piece Of My Heart by Janis Joplin is in Ab at 90 beats per minute and runs 1:36 across 31 bars. It uses 7 chords — Eb, Ab, Bb, Bb7, Cm, Db, Fm7. The chord diagram changes as the song plays and the words light up as they are sung, so you can strum and sing along without reading ahead.
Want the melody line note by note? Piece Of My Heart guitar melody tab.