Credit: Pablo Tomatis/BuzzFoto/FilmMagic

Adam Lambert is trying to keep his chin up.

ABC -- which already cancelled his Good Morning America performance in the wake of his provocative AMAs number -- has dumped Lambert again. And again!

Lambert Tweeted Tuesday, "Yes, sadly friends, ABC has cancelled my appearance on Kimmel and NYE." The singer, 27, suggests the network isn't exactly to blame for nixing his Jimmy Kimmel Live and New Year's Eve appearance.

"Don't blame them," he writes. "It's the FCC heat."

(The Federal Communication Commission could potentially fine ABC if its programming is found objectionable; ABC received more than 1500 complaints as a result of Lambert's AMAs show, in which he simulated oral sex and kissed his keyboardist.)

The American Idol runner up adds that he's not gig-less by any stretch: "I AM doing Leno though. And lookin into something for NYE ... It'll all blow over. Let's focus on being positive! :)

Publicly, Lambert has said he has no plans to apologize for his AMAs set, and that "my intention was to interpret the lyrics of my song and have a good time."

Yet, privately, an insider says in the new issue of Us Weekly, "he's freaking out. He's trying not to piss people off; he's trying to push buttons as an artist."

Read more about the fallout from Lambert's talked-about performance in the new issue of Us Weekly -- on newstands today!