Josh Henderson is an American actor and singer. He first became widely known from his appearance on The WB singing competition show Popstars 2, on which he was one of the winners selected to be a member of the pop group Scene 23.

Henderson competed on the second season of the WB reality show Popstars, where he won a spot in the group Scene 23.

Henderson guest-starred on television shows such as 8 Simple Rules, 90210 and CSI: Crime Scene Investigation, and was a series regular on the FX's Over There in 2005 which focused on the war in Iraq and how it effects soldiers and their families.

In 2006, he joined the cast of Desperate Housewives as Austin McCann. His film credits include The Girl Next Door (2004), Yours, Mine and Ours (2005), Step Up (2006), Broken Bridges (2006), Fingerprints (2006) and The Jerk Theory (2009). In 2012, Henderson began playing the character of John Ross Ewing III in the TNT revival of Dallas.

Dallas scored an audience for its series premiere that was better than any other new cable show. Overall, roughly 7 million people tuned in to watch J.R. Ewing and his John Ross spin their devious web of deceit back on Southfork Ranch.

The highly anticipated Season two of Dallas will premiere January 28th to what is expected to be record numbers for a cable show.