Phil Collins revisits a career that can boast over 100 million sales and numerous worldwide #1 albums. Both Sides will be remastered by Nick Davis, who earned a Grammy nomination for Best Surround Sound album for his work on the Genesis '1970-1975' box set. Davis has also worked on all of the Genesis retrospective reissues.

Entirely curated and compiled by Collins himself, his idea for this release is to examine how his songs have evolved over time, with the majority of the additional content throughout these releases focused on live versions of the tracks. By contrasting the original studio versions of the material with later performances, the series demonstrates how Collins' songs take on a life of their own once they're freed from the confines of the studio.

Originally released in December 1989, '...But Seriously' features many of Collins' biggest hits and was one of its era's biggest selling albums. In the UK, it spent a total of 15 weeks at #1 during an extended run of almost a year in the Top 10 en route to becoming the biggest selling album of 1990. The album campaign culminated with his fourth and fifth BRIT Awards for British Single ('Another Day in Paradise') and British Male.