That wasn't the only controversy surrounding Gaga -- last Wednesday, the star apologized for calling the comparisons between her hit "Born This Way" and Madonna's "Express Yourself" "retarded." The same night, she fell on stage in Atlanta.
Gainor also had strong words for Gaga, whom he called a "sleazy Madonna ripoff."
"Everything she does, everything Ryan Murphy does, is intentionally provocative," he said, "almost like controversy helps them promote their agenda."
Tonight's much-anticipated episode has been extended to 90 minutes.
Adler, who plays Karofsky, was guarded about whether his character will come out tonight.
"I think everybody eventually wants to see Karofsky accept who he is," Adler told TV Guide last week. "Just being himself and not having to hide who he is and mask who he is every day. Everyone wants to see that weight lifted. However, I do think it should take its proper time and its due course. Karofsky is such a great character to play as an arc because you can show the internal struggle that a closeted teen is going through on a daily basis."
With tonight's theme of self-acceptance, other prominent characters will be learning to love the things they hate about themselves. Rachel Berry, played by Lea Michele, considers a nose job, while plus-size student Lauren Zizes (Ashley Fink), who's comfortable with her size, decides to run for prom queen.