The 25-year-old star will release her new album Born This Way on May 23 but Hair is the latest single to be released before the album is due out.
Fans will be able to get their hands on a copy of Hair when it is released on iTunes on May 16, a week before the album's release date.
An admin on the Lady Gaga fansite Ladygaganow.net revealed the news on its Twitter page.
A message said: "It's official: 'Lady Gaga's track Hair will be released on iTunes on May 16th.'"
The track is the fourth to be released in a fairly short space of time. Born This Way was released in February while Judas was released last month and The Edge Of Glory was released on May 9th.