'Gossip Girl'
(8PM, The CW)
When Chuck and Blair have suddenly emerged as the most likable characters on the show, it may be time for their fellow Upper East Siders to rethink some of their life choices.

Like, say, Dan, who was so jealous of little sis Jenny's renegade fashion show success that he's decided to deploy whatever means necessary to launch his writing career. Dan's plan: Pretend to befriend Chuck's papa Bart Bass.

That alone is enough to tick Chuck off, but when the junior Bass finds out that Dan's ulterior motive is to dig up Bart's nastiest secrets for a Vanity Fair mag article (yes, we're just going to pretend it isn't ridiculous that a high schooler would be assigned a major VF expose) ... let's just say there's nothing scarier than a baby Bass scorned.

'Dancing With the Stars'
(8PM, ABC) 7th season premiere
Cloris Leachman, prepare to get down and funky with your bad self.

And fans, pencil in three nights of primetime viewing for the 'DWTS' season premiere, which includes the opening night of competition (Mon.), a second night of performances (Tue.) in which one couple will be eliminated and a results show (Wed.) that will find another couple getting bounced and a performance by the Jonas Brothers.

Among the 13 celebs hoping to boogie their way to the mirrored ball trophy: Leachman, the show's oldest-yet contestant at 82, Susan Lucci, Lance Bass, Kim Kardashian, comedian Jeffrey Ross and 'Hannah Montana's' Cody Linley, the youngest-yet contestant at 18.