Credit: Moby Picture

Dancing With the Stars pro Derek Hough recently “Punk'd” his sister Julianne, so cheers to fellow pro Mark Ballas for turning the tables on his best friend.

"Just pranked @Derekhough so gd,” Mark tweeted on July 4, “left his car running & I jumped in an drove it away. He came running out of the gym at a Rapid pace w/ the look of Horror on his face #score lol.”

Derek retweeted Mark's note, adding "Classic." Derek deserves some ribbing; it seems like every time we turn around he’s flirting with another beautiful woman — from Mark’s Season 14 partner Katherine Jenkins to The Hills alum Stephanie Pratt.

Meanwhile, Mark recently performed at the Miss North Carolina pageant and last night he co-hosted E! News. Also, @DWTSGossip reports that Mark is joining the cast of Dancing With the Stars: Live in Las Vegas from July 9-12 and Kym Johnson will be there from tonight until July 10. They’re probably replacing the injured Tristan MacManus and Lacey Schwimmer.

We can’t wait to see everyone back for DWTS All-Stars this fall. Nothing has been made official, but rumor has it the season will premiere on Monday, September 24.

Sources: @MarkBallas, @Derekhough, @DWTSGossip

Gina Carbone is a contributing writer at Wetpaint Entertainment. Follow her on Twitter @ginacarbone.

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