Ice Cube, Mack 10, and W.C. reunited their rap supergroup, Westside Connection, this past weekend for a video shoot for "Let It Reign," the planned first single from the soundtrack to Mack 10's upcoming film, "Thicker Than Water."

The members of Westside Connection have made guest appearances on one another's solo albums, with Ice Cube coming out for WC's "The Shadiest One" and Mack 10 contributing to Cube's "War and Peace, Volume 1: The War Disc." But "Let It Reign" marks the first record that Westside Connection has officially released since the group's 1996 album, "Bow Down."

As we previously reported (see "Mack 10, Fat Joe Take Star Turns In New Film"), "Thicker Than Water" was produced by Mack 10's Hoo-Bangin' Films and stars Mack 10 and Fat Joe as rival gang leaders who discover that they're half-brothers.

The double album soundtrack for "Thicker Than Water" is due out on July 27 and includes cuts from Noreaga, Big Pun, and Fat Joe, among others. The film is expected to be released the summer.