Hot on the heels of his critically acclaimed 'So Beautiful or So What' album, Paul Simon is taking a look back with remastered editions of his first four (post Simon & Garfunkel) solo albums.

The singer-songwriter's self-titled 1972 album, the following year's 'There Goes Rhymin' Simon,' and 1975's 'Still Crazy After All These Years,' along with 1974's 'Paul Simon in Concert: Live Rhymin'' live album, have all been augmented with bonus tracks, typically demos or alternate takes of songs.

The live album's voice-and-guitar versions of 'Kodachrome' and 'Something So Right' are particular highlights of the bonus material, and demo versions of classics like 'Loves Me Like a Rock' and 'Me and Julio Down by the Schoolyard' (from 'Rhymin'' and 'Paul Simon,' respectively) offering a personal glimpse into his unique talent.

Simon recently wrapped up a short tour in support of 'So Beautiful or So What,' somehow missing the entire state of Ohio (cough, cough). Along the way he shared the stage with both Talking Heads frontman David Byrne and a very nervous guitar-playing fan in Toronto.

Watch Paul Simon Perform 'Me and Julio Down By the Schoolyard' on 'Sesame Street'