It has been hinted that Ed is taking part in Justin Bieber's new acoustic album. Tuesday night, Justin's manager(@scooterbraun)tweeted that Ed was in the studio the same night that Justin happened to be working on his January 29th album release. While it hasn't been confirmed that Sheeran is helping with the album or not, a photo of him in the studio was tweeted by Justin's manager,Scooter Braun, with a tweet saying,"Not gonna lie. There is magic in the studio tonight. Truly honored to be here. Now back to the jokes." So watch out for a possible collaboration with the Sheeran and Bieber in the near future!
Source:
http://www.fansofedsheeran.com/2012/12/ed-collaborating-with-justin-bieber.html