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Lisa finds out that she's the most unpopular girl at school, so she anonymously posts complimentary comments about herself on the Springfield Elementary blog. However, when Bart exposes her self-promotion to the school, she becomes even more despised. Her spirits aren't really lifted when Lady Gaga's Gaga Express rolls into town. Gaga's attempt to make Lisa believe in herself again cause Lisa to unleash her repressed anger and rage at the superstar. The relief of finally releasing that anger helps Lisa realize that it's okay to be your own biggest fan, which she announces to the town via a Gaga-inspired song.