Billboard are reporting that Vicarious will be the first single from 10,000 Days and will be played on US Radio stations on the 17th of April:

Rock act Tool has revealed the track list for its next studio album, “10,000 Days.” As previously reported, the set is due May 2 via Volcano. Billboard.com has learned that first single/album opener “Vicarious,” which stretches past the seven-minute mark, is due to arrive April 17 at U.S. rock radio outlets.

True to form, the 11-track “10,000 Days” sports a number of epic tunes, particularly “Rosetta Stoned” and “10,000 Days (Wings Pt. 2),” both of which clock in at 11:14. Near the end of the disc are the substantially lengthy “Intension” (7:21) and “Right in Two” (8:56).

Thanks to Beachy324 for Toolarmy for the tip on that one.