Beyonce Announces 'End of Time' Remix Contest, Hints at Single Release

Beyonce's First Tweet Causes Social Storm

New mom Beyonce is making her music world return, calling for remix submissions for "4" track "End of Time" on Wednesday.

The singer, in her first major announcement is the birth of daughter Blue Ivy Carter, is asking fans to submit their versions via, where they can download stems from the "4" song.

The contest is in association with audio sharing site Soundcloud, which will allow votes on the entries.

The remix winner will win a $4,000 prize and inclusion on a future Beyonce release -- though the nature of that release was not revealed. The single release of "End of Time" would be a likely choice, making it the fifth track released from "4."

The song charted on download sales alone after the release of "4," reaching No. 13 on Billboard's Bubbling Under Hot 100 Singles chart.

Beyonce was photographed at husband Jay-Z's 40/40 Club on Monday, her first public appearance since giving birth.