Derek Hough - Vines from "Dancing with the Stars" Rehearsals!

Derek Hough keeps it cool under his fedora while out at The Grove on Saturday afternoon (April 6 2013) in West Hollywood, Calif.

Derek Hough has been busy in rehearsals for Dancing with the Stars with his partner, country singer Kellie Pickler!

Also pictured: Mark Ballas arriving at the DWTS studios for rehearsals that same day.