Musician St. Vincent Asks Fans To Help Unlock Videos & Track By Tweeting [VIDEO]

Singer/songwriter St. Vincent's new disc Strange Mercy drops in September, but Tuesday she's asking fans to tweet using the hashtag #strangemercy to unlock a track, as well as a series of videos, on a dedicated website.

So far one video has been unlocked -- see above -- on the site, with three more to go until the MP3 is up for grabs.

St. Vincent, a.k.a Annie Erin Clark, tweeted about the campaign this afternoon, saying: "Please RT #strangemercy and help reveal all at strangemercy.com."

The tweet-to-unlock model seems to be catching on. Warner Bros. employed a similar method to reveal a picture from the much-anticipated Batman film, The Dark Knight Rises, the other month, asking fans to use a hashtag to unlock the pic. And 3 Doors Down revealed a stream of its new disc in a similar way.