What Are Demi Lovato's Exes Doing Together?

Demi Lovato has had some high profile relationships with fellow celebs, including Camp Rock co-star Joe Jonas and most recent BF Wilmer Valderrama. The 19-year-old "Skyscraper" singer and the 22-year-old JoBro have been broken up for quite some time now, while her on-again, off-again relationship with the 32-year-old That 70s Show actor is currently off-again. With Demi M.I.A. and away, it looks like her two exes have come out to play - together! 

Wilmer had a star-studded birthday party at Sayers Club in Hollywood on January 29th, with 70s Show co-stars Topher Grace and Laura Prepon in attendance as well as Wilmer's new BFF... Joe Jonas?! Apparently the two met on New Year's Eve at Hyde nightclub in Las Vegas and have been besties ever since. 

OceanUp has the photos of the new BFFs hanging out at Wilmer's birthday:

Do you think Wilmer and Joe can really be best friends? Would you be BFF with your ex's ex?