Coming by way of ComingSoon.net is the following press release:
Music From The Motion Picture Watchmen, the film's official soundtrack, includes My Chemical Romance's powerful reinterpretation of Bob Dylan's "Desolation Row," recorded exclusively for the film. The soundtrack also features a collection of classic songs by such artists as Nat King Cole, Simon & Garfunkel, and Janis Joplin, which, once heard in the context of the film, will never be thought of the same way again.
Watchmen Original Motion Picture Score features music by recording artist, composer, and music producer Tyler Bates, who was asked to score the film by Watchmen director Zack Snyder... Music From The Motion Picture Watchmen and Watchmen Original Motion Picture Score will be released in multiple fan-friendly configurations: The physical CD, and a digital album will be available on March 3rd, and a vinyl edition of the soundtrack will be released on March 17th.
Watchmen Music Collectors Edition 7″ Box Set will be released on March 24th. The box set contains 7 double-sided 7″ picture discs of each Watchmen character on one side, and images in the likeness of the graphic novel on the other. The Watchmen Music Collectors Edition 7″ Box Set will include My Chemical Romance's "Desolation Row," along with 13 tracks by Tyler Bates.