Lady Gaga, Cher 'The Greatest Thing' LEAK: LISTEN to Encouraging, Uncompleted Duet from Pop Legends: Cher Lashes Out Against Leakers on Twitter [AUDIO]

If two leaks weren't enough for Lady Gaga in a week, a new song 2013 with pop legend Cher has hit the web prematurely. "The Greatest Thing," a duet between the two artists was unveiled onto the Internet today (Aug. 13), and neither Cher nor Gaga are particularly happy about it.

"Just heard TGT! F*CK ! IT'S NOT EVEN THE RIGHT F*CKING VERSION!!! WHY DO PPL THINK THIS KINDA LEAKING SH*T IS OK ! I'm so Fg DISSAPOINTED," Cher ranted on her Twitter page, upon hearing the news that "The Greatest Thing" leaked. "FK."

Disappointed( Ive Sat on fkng song 4 over a yr )NOW SOME ASSHOLE LEAKS WRONG VERSION ! GaGa’s SINGLE IS GREAT, & THAT’S ALL THAT MATTERS

— Cher (@cher) August 13, 2013

The jangly and shiny bright song features almost equal parts Cher and Gaga. A disco dance track for the ages, "The Greatest Thing" is an encouraging love song. "I don't know why you hurt inside, / Or what someone said to make you hurt inside, / I hope you understand that you're the greatest thing," Cher belts out in the song's opening lyrics.

Though streams and unofficial versions of the song are being taken down quickly, listen to a leaked version of the reportedly unfinished "The Greatest Thing" below.

It's not clear when "The Greatest Thing" was originally due out. Likely, it's off the upcoming Cher album "Closer to the Truth," featuring her new single "A Woman's World."

"The Greatest Thing" isn't the first song from Lady Gaga to hit the web prematurely this week. "Artpop" track "Aura" (also known as "Burqa") appeared in a bizarre, demo form. More notably, the lead single from "Artpop," "Applause" was leaked over the weekend. That event cause the Mother Monster to release the single almost a week early. "Applause" hit the radio Monday and the iTunes market today, putting it head-to-head with Katy Perry's "Roar."

"Artpop," if it can contain the leaks, will be released Nov. 11.