Mission Control in Houston woke the space shuttle Discovery and the International Space Station crews at 6:23 a.m. EST to the song "Oh What a Beautiful Morning" by Davy Knowels & Back Door Slam, played for Mission Specialist Nicole Stott.Spacewalk preparations begin at 7:03 a.m. Walkers - Steve Bowen and Alvin Drew are scheduled to begin their excursion at 11:18.a.m. During the 6 hour, 30 minute spacewalk, the pair will install the J612 power extension cable, move a failed ammonia pump module to the External Stowage Platform 2, install a camera, install extensions to the mobile transporter rail and expose the Japanese "Message in a Bottle" experiment to space. Good luck!Steve Bowen and Alvin Drew - the spacewalkers!