Three CD set.. The 2+2 = 5: Best of + Rarities compilation encompasses the best of Mark Spiro's solo material starting from "Now Is Then, Then is Now", originally released in 1996, until "It's a Beautiful Life", released in 2012. Also included are his songwriting collaborations with none other than Dann Huff (Giant), Michael Thomson (MTB), Jim Vallance (Bryan Adams), and Tim Pierce. As a special treat for the discerning and passionate melodic rock fans, the album includes 13 unreleased songs which also includes collaborations with Dann Huff, Michael Thompson, and Jason Derlatka.