Kyle Busch returns as only three-time event winner
Hamlin will drive at Texas; Herring will drive at Phoenix and Homestead
Denny Hamlin says back feels a lot better and Drew Herring has a bright future with JGR.
Kevin Swindell crashes into the Turn 3 wall after contact with Drew Herring .
Pole sitter Drew Herring spins to bring out first caution at Iowa Speedway.
Drew Herring is done for the night after hard contact with the backstretch wall.
Blake Shelton's moving speech, Martin Truex Jr.'s Skype drop-in among top moments
Technology Countdown: Aerodynamics