“HOLY EQUALITY!” tweeted Andy Cohen, the openly gay star of Bravo's Watch What Happens Live, “Yes, Gays, there is a Santa Claus. I just decided to enlist.”

Cohen is among the growing list of celebrities tweeting about Saturday's repeal of “Don't Ask, Don't Tell,” the ban on gay troops serving openly in the military.

Singer Lady Gaga, a strong advocate for gay rights, mounted a spirited campaign to end the law. Her efforts made her the most visible celebrity to advocate for repeal.

“Can't hold back the tears+pride,” the pop star tweeted to her more than 7 million followers. “We did it! Our voice was heard + today the Senate REPEALED DADT. A triumph for equality after 17 YEARS.”

Openly gay talk show host Ellen DeGeneres thanked senators for “pushing us one step closer towards full equality.”

Singer Ricky Martin, who recently announced he's gay, tweeted: “One step closer to #equality!! #DADT is gone!”

“So proud of Congress for making the right decision,” Neil Patrick Harris, who recently became a dad, tweeted. “Now all soldiers can serve with integrity. A gr8 day.”

Modern Family star Jesse Tyler Ferguson echoed the sentiment: “Don't Ask Don't Tell closer to being on the 'Remember-how-crazy-it-was when' list!”

“You got it,” Kathy Griffin, the star of Bravo's My Life on the D-List, tweeted. “How about … FINALLY! Equality IS coming! … talk about DADT news!”