"Gossip Girl" ended its six-season run with a major reveal: The identity of its tattle-tale blogger.

Known only as Gossip Girl and given a narrative voice by actress Kristen Bell, "she" turned out to be a "he".

The Monday night finale revealed Gossip Girl was secretly the work of character Dan Humphrey.

Dan, played by Penn Badgley, was a budding poet and a student at Manhattan's posh St Jude's Preparatory School for Boys. But he came from the other side of the tracks, or rather, from Brooklyn.

His Gossip Girl blog was a sassy tell-all account of the lives of the privileged young adults who made up the CW drama.

Other series stars included Blake Lively, Leighton Meester and Chace Crawford.