I just got an email from someone who did a Biblical Studies and English Lit dissertation entitled U2 as Modern-Day Psalmists, on the themes and stylistics of U2's work and its similarities to the Psalms. Some highlights were: WUDM and 'Mofo' as Psalms of Lament, Psalms of Praise such as 'Gloria' and 'Streets'; the subversion of the blues and gospel genres and justice, the significance of 'love' as an analogy of God, and the place of inverted proverbial phrases in songs such as 'The Fly' and 'Zooropa'.

Now that's my kind of dissertation.