Lady Gaga has just revealed, via her twitter, that she's just put the finishing touches on a duet with none other than Sir Elton John. The track, entitled 'Hello, Hello,' will appear on GaGa's upcoming second album (or third if you count The Fame Monster) Born This Way. Gaga and John previously collaborated at this year's Grammy awards, and have since become great friends. Gaga has long been an advocate for LGBT causes and issues, most recently imploring her 'little monsters' to aid in the effort to repeal Don't Ask Don't Tell, so it's no surprise that she and John have developed such a great working relationship. Born This Way will be released in early 2011, with the first single dropping by the end of the year.
NEXT PAGE: WATCH VIDEO OF GAGA & ELTON PERFORMING TOGETHER.